In short
Mast cell activation syndrome (MCAS), histamine intolerance, and their links to POTS/dysautonomia, chronic multisystem symptoms, and practical stabilization strategies (diet, OTC meds, nervous-system retraining, and cautious detox).
Guest background
Michelle Shapiro is a registered dietitian who works with many clients with MCAS/histamine-related reactions and describes her own history of severe illness from mold exposure (stockybotrys) after years of no answers.
Key claims
Histamine is one of 1,200+ mast-cell messengers; MCAS is constant mast-cell activation. Symptoms can be “system anywhere” because mast cells sit in connective tissue throughout the body. Triggers often stack (mold/toxicants, stress, detox protocols, foods). Testing can miss non-flare cases; tryptase/histamine are short-lived. Stabilize histamines and the nervous system first; detox/immune-enhancing steps can worsen reactions (e.g., vitamin C IV causing fevers). POTS is framed as downstream of MCAS via vasodilation/blood pooling and autonomic dysregulation.
Notable examples
Shower heat causing red legs, dizziness, and pounding heart (vasodilation/blood pooling). Long-COVID case improved with famotidine (Pepcid). Food triggers listed as vinegar, citrus, tomatoes (especially aged), fermented foods, spinach, avocado, bananas, alcohol, and aged/fermented items. POTS types discussed: hypovolemic (needs high sodium), hyperadrenergic (adrenaline response), and idiopathic.
Written by AI. May contain mistakes. Listen to the episode to check what was said.
Chapters
Tap a time to open that second in VOUnderstanding Histamine and Mast Cells
0:45 to 1:40
A discussion on histamine, mast cell activation syndrome, and their health implications.
“and she shares her personal and professional journey navigating these challenging conditions.”
Exploring Mast Cell Activation Syndrome
1:40 to 3:30
Michelle explains what mast cell activation syndrome is and its symptoms.
“It seems as if mass cell activation syndrome is something that plays a role.”
Symptoms and Their Origins
3:30 to 5:20
Delving into the various symptoms associated with histamine issues and their origins.
“Just out of curiosity, why do you think that is?”
The Role of Environmental Factors
5:20 to 7:40
Discussion on how environmental factors like mold can trigger histamine reactions.
“Really anywhere where they say there's a dark, hollow space in your body, there are mast cells.”
Diagnosis Criteria for Histamine Issues
7:40 to 9:50
Explaining how to diagnose mast cell activation syndrome and other histamine-related conditions.
“So I'd been a physician seeing patients and it turned out I went to probably five different doctors and I didn't get any answers.”
Patient Experiences and Dietary Considerations
9:50 to 14:00
Insights into patient experiences with histamine intolerance and dietary triggers.
“And then you watch Navy SEAL documentaries at 9 p.m., which is way past my bedtime, with the children.”
Identifying Histamine Issues
14:00 to 16:08
Learn how to recognize patterns associated with histamine intolerance.
“So clients who eat tomatoes and citrus fruits and fermented foods, if you went to a gut health doctor, these would be the healthiest foods on the list.”
Understanding MCAS and Histamine Intolerance
16:23 to 18:58
Explore the differences between mast cell activation syndrome and histamine intolerance.
“it also made me think about small intestinal bacteria overgrowth.”
The Role of Healthcare Providers in MCAS
18:58 to 20:47
Discuss the responsibilities of medical professionals in treating MCAS.
“You'd go to the ER, you'd go to a cardiologist's office, but there's no cardiologist who's pulling out a list of histamine intolerance checklist when someone's coming in.”
Diet and Treatment for Mast Cell Activation Syndrome
20:47 to 23:17
Learn about dietary approaches and treatment options for MCAS.
“So if someone has these symptoms in the short term, or we've even identified the root cause, you still have to treat the symptoms first.”
Show all 30 chapters
Symptoms of Histamine Reactions
23:17 to 28:00
Understand the variety and intensity of symptoms related to histamine reactions.
“T lymphocytes in turn secrete microparticles that again activate mast cells.”
Understanding Mast Cell Activation Syndrome
28:00 to 29:21
Learn about the challenges of mast cell activation syndromes and the importance of stabilizing histamines and the nervous system.
“But really people with mast cell activation syndromes, I think of our bodies as, and these highly sensitive bodies, as bodies that are on guard.”
Case Study: Long COVID and Pepcid
29:21 to 31:22
Explore a case study involving long COVID and the effective use of Pepcid in treatment.
“And there's this one patient that I'm thinking about, and this was...”
Case Study: Long COVID and Pepcid
31:33 to 31:45
Explore a case study involving long COVID and the effective use of Pepcid in treatment.
“And they have amazing, amazing small travel packs of this magnesium, Mellow Magnesium.”
Addressing Histamine Reactions and Protocols
31:45 to 34:08
Discuss approaches to manage histamine reactions and establish effective treatment protocols.
“And it's actually because Pepsid is an antihistamine, which most people don't know.”
Dietary Management of Histamine Issues
34:08 to 36:27
Learn about dietary strategies for managing histamine intolerance and improving symptoms.
“The question that's going to come up in your amazing medical community is, well, Pepsod lowers stomach acid, and low stomach acid is a huge problem, Michelle.”
Nervous System Stabilization Techniques
36:27 to 39:27
Examine techniques for stabilizing the nervous system in individuals with mast cell activation.
“So 8 to 12 weeks on a low histamine diet, whole foods, taking some form of typically an H2 blocker.”
Vasodilation, Migraines, and Mast Cell Connections
39:27 to 42:01
Explore the connection between histamines, vasodilation, and migraines, emphasizing their implications.
“So one thing, one of the functions of histamines is to cause vasodilation, okay?”
Understanding Migraines and POTS
42:01 to 46:40
Learn how histamine issues relate to migraines and POTS symptoms.
“We kind of squeeze your body like a go-gurt tube and just bring the blood flow back up, right?”
Understanding Migraines and POTS
46:41 to 47:49
Learn how histamine issues relate to migraines and POTS symptoms.
“As you know, Beef is more than a delicious, satisfying protein.”
Exploring POTS and Exercise
47:54 to 52:49
Find out how to manage POTS symptoms, exercise intolerance, and treatment options.
“Gabrielle Lyon that is going to be so profound for people.”
Hypermobility and Personal Experiences
52:50 to 56:03
Hear personal stories and the connection between hypermobility and POTS.
“Hypermobility as I'm talking about it is probably a collection of conditions that are connective tissue disorders called Ehlers-Danlos syndrome EDS.”
Understanding Hypermobile Ehlers-Danlos Syndrome
56:03 to 58:12
Explore the complexities of hypermobile Ehlers-Danlos Syndrome and how it affects the body.
The Impact of Connective Tissue on Health
58:12 to 1:02:32
Learn about the relationship between connective tissue disorders and symptoms like POTS.
“So Ehlers-Danlos Syndrome, there's 13 different types of EDS.”
Building Muscle for Stability
1:02:48 to 1:04:03
Understand the importance of muscle in supporting those with hypermobility.
“well, are you having a hypermobile symptom day or are you having a mast cell symptom day?”
Histamine and Hormonal Connections
1:04:03 to 1:09:04
Discuss the link between histamine reactions and the menstrual cycle.
“Are there adjunct therapies that are more beneficial for one group than the other?”
Responses to Hormone Replacement Therapy
1:09:04 to 1:10:01
Examine the effects of estrogen and progesterone on histamine sensitivity.
“of relief to understand why their body might be operating on a different system.”
Understanding Histamine Responses and Symptoms
1:10:01 to 1:14:20
Learn about how histamine impacts various symptoms and what remedies can help.
“However, if someone needs hormone replacement therapy, we have to find a way to reduce the symptomology to have them tolerate the medication that's essential for them.”
Mindset and Healing in Chronic Conditions
1:14:21 to 1:18:48
Explore the importance of belief in healing chronic conditions like POTS and MCAS.
“that people may have to manage yes do i have hope for almost every single person that they can live a life without having to think about it and kind of live a life that's really custom and cater to them?”
The Role of Resilience in Recovery
1:18:49 to 1:20:45
Discover how resilience and education can empower recovery from chronic symptoms.
“And just, again, for those of you guys who don't know Michelle Shapiro, watch for her.”
Transcript
Automatic transcript. May contain errors.0:00Gabrielle Lyon:If you've ever felt dismissed by medical professionals or if you've struggled with confusing symptoms like dizziness, racing heart, or fatigue without clear answers, this conversation is for you. Histamine is one of 1 ,200 plus chemical messengers that come out of mast cells. In this episode of the Dr. Gabrielle Lyon Show, I interview Michelle Shapiro, registered dietitian. Clients who eat tomatoes and citrus fruits and fermented foods, if you went to a gut health doctor, these would be the healthiest foods on the list. They would say, you have to eat these foods, and they would be the exact foods that would sicken those with histamine issues.
0:39Gabrielle Lyon:We're tackling a widely misunderstood and ill-defined health issue. Histamine and its related conditions like mast cell activation syndrome, postural orthostatic tachycardia, or POTS. and she shares her personal and professional journey navigating these challenging conditions. It's impossible to believe that something that's healthy for someone can create severe symptoms. It's not logical almost, right? Why would someone drinking lemon water make them violently ill for a week? It almost, it's like defies our understanding of the human body almost because it acts in this very odd way basically.
1:15Gabrielle Lyon:We'll explore why traditional medicine often misses the mark on diagnosing and treating them and discuss how these conditions intersect. We break down practical strategies to reclaim your health, calm your nervous system, and build resilience. Michelle Shapiro, registered dietitian, also one of my dearest friends. Welcome to the show. I'm already emotional. Thank you so much for having me here. I mean, this is... So happy to be here. Unbelievable. It's unbelievable. more. One of the reasons why I wanted to have you on is typically when we see a patient in the practice that has all these strange symptoms like dizziness, heart rate variability, they are reacting to foods, to sun, to things that we couldn't even imagine.
2:05Gabrielle Lyon:It seems as if mass cell activation syndrome is something that plays a role. And it being related to nutrition, you certainly are an expert and have seen many patients with mass cell activation syndrome. But what is it? Yeah. So we'll first define what mass cells are. I think that's really important. So much of the conversation online right now is about histamines. So we're going to use that word a lot. But I think to even define histamines, we have to talk about where they come from. Mass cells are a part of our immune system. They're a type of white blood cell. And I really think of them as being the guards to our body.
2:42So what their job is, is to assess for threat and then send messengers out to the rest of our body, instructing them on what do we do in this situation. And I really think of mass cells as being this, not only, they not only help with the healing in times of a threat, but they are always anticipating threats as well. So what happens is something will attach to the outside of a mass cell. And then the inside, there's these sacs where they will release these granules that have these chemical messengers in them. One of them is histamine. So this is why this histamine conversation becomes so important.
3:14Mass cell activation syndrome is when those mass cells are constantly activated and releasing these chemical messengers. And it's really important to state histamine is one of 1 ,200 plus chemical messengers that come out of mass cells. Wow.
3:28Gabrielle Lyon:And we really have kind of honed in on histamines. Just out of curiosity, why do you think that is? I think histamines create the most emergency-like symptoms. And I think that's why we focus so much on them, because histamines are the most, I guess, the loudest, you could say, of a lot of them. There's elastases, tryptases, cytokines. There's so many different compounds that come out of our mast cells. But the ones that we can actually see and feel come from histamines, usually. For anyone who's interested in research, I wanted to pull some of the new existing data. And this is a 2024 paper. it's the world journal of clinical pediatrics and it's mast cell activation an up-to-date review of the literature and again it talks about mast cells is this again what you had said a type of white blood cell that is involved in the immune system and they create a common list of symptoms flushing hypotension, itchiness, swollen tongue, headache, vomiting, diarrhea.
4:31Gabrielle Lyon:And it seems as if there's a lot of outstanding questions. I'd love for you to talk a little bit about what these symptoms are. Is it system dependent? And how is that going to happen? I can't believe how excited I am to talk about this. I'm like, this is so great. Thank you for asking me that question. So when we think of histamines, we often think of medications like antihistamines. I was just thinking this is a Benadryl deficiency. Right. It's like you just need a Zyrtec, right? Which in some cases, by the way, you do need a Zyrtec. And we can talk about the medication component of it. But histamines are so much more than just these compounds that cause mucus and coughing and this type of classic cold symptomology.
5:12So mast cells are in our connective tissue. And our connective tissue lines every organ in our body, our joints, our bones. Really anywhere where they say there's a dark, hollow space in your body, there are mast cells. So that means that the symptoms from histamines can come from anywhere in your body. So it's really weird because if people can get tachycardia or low or high blood pressure from histamines, they would actually think, maybe I'll go to a cardiologist. But in reality, because the symptoms are coming from this type of chemical compound, it's really hard to trace kind of their place of origin.
5:49And other symptoms that people experience with histamine issues are flushing and those classic allergy symptoms that we think of cold symptoms. But then also people can experience extreme urgency in their digestive system, extreme urgency in their urinary tract, feeling like their bladder is constantly full and irritated, feeling extreme anxiety because one of the roles of histamine is to keep us awake and alert. So people have insomnia, anxiety that's really prevalent, depression or depressive symptoms, because we can't say there's only one root cause of any of these conditions or syndromes. Histamine issues can cause joint pain, and our perception of pain can be increased from them as well.
6:29And then a lot, just again, a lot of digestive issues people are seeing. Rapid diarrhea, also constipation, which is weird, it depends on the person, and a lot of nervous system involvement too. And that's really tricky because it's almost a catch-all phrase.
6:44Gabrielle Lyon:You're not feeling well. It could be mast cell activation syndrome, which is not common. I think that this is a case, when I say it's not common, it's not very common in the literature. It's also not common from a diagnosis perspective. And it reminds me of when mold and environmental toxins were never thought of. I remember when I was living in New York City. I mean, we've known each other now. It's going to be almost a decade. It'll be going on a decade. And when I was living in New York City. So sweet. I'm going to start crying. I know. So sweet. Before both babies and before Shane. Literally.
7:23Before Shane.
7:24Gabrielle Lyon:Aren't you so glad we don't have to listen to Bud's class 234 like we were on repeat last night. At 10 p.m. I know. When I was living in New York City, I got really sick living in my apartment. I went to multiple doctors and I had already been a physician, right? So I'd been a physician seeing patients and it turned out I went to probably five different doctors and I didn't get any answers. I couldn't explain word finding difficulties, vision changes and just terrible fatigue. I mean, I could barely get out of bed. and it ended up being mold i was exposed to stocky botrys in the apartment that i was living in but at the time people would think that was crazy now everybody is talking about mold it's really become more of a prevalent disease just just like lyme absolutely mast cell activation i think is the next thing.
8:22Yeah, and mold, by the way, can be a very clear root cause to mass cell activation syndrome, by the way, because of this inflammatory cascade that happens as a result. Because anything that triggers your immune system to be in that constant state of threat or activation or needing to detox all the time, anything like that, if you don't have proper drainage, can create this immune system need to constantly put out these messengers and constantly fight. That is very interesting
8:52Gabrielle Lyon:because it gives us a root cause approach and that is something that you really focus a lot on. How does someone know what would be the process of trying to figure out if someone had mast cell activation syndrome and I'm thinking of one patient I have and he would go into his house and immediately he would get a histamine reaction yeah so first of all you can have that histamine reaction to these environmental toxicants so when i think of we'll talk about the diagnostic piece but also when i think of this histamine problem usually it's a composite of different uh different factors so histamine issues are not just from one thing so it's not that you ate a tomato and then you were sick after i think of histamines much like we think of autoimmunity kind of like a bucket theory.
9:36So you could have a little bit of environmental toxicant that puts your immune system on guard, a little bit of mold, and then you have a stressful conversation with a family member, and then you eat a bunch of tomatoes, and then you drink a little bit of alcohol, and then that turns into this state. And then you watch 234. And then you watch Navy SEAL documentaries at 9 p.m., which is way past my bedtime, with the children. Yeah, exactly. But it's a composite of these things that then puts your body into this state of activation. So it It really is not just usually one event. However, I will say a lot of times if there is one event, it is usually from a very strong detox protocol.
10:13So I often see clients coming to me after they've been to functional medicine doctors on these incredible parasite cleanses, mold detoxes. They're correct, but their immune system is too reactive, basically.
10:24Gabrielle Lyon:And what I'm hearing you say is you're describing what people would probably pin on a Herx reaction. That is exactly right. and so usually if you're working with a fabulous functional medicine doctor they'll titrate down or they'll say we kind of have to push through right we have to push through this herx the problem is with histamine issues is you have a new problem if you have if you have mass activation syndrome while you're going through a mold detox you now have to deal with the mass activation syndrome because your immune system in that state of constant searching and fighting is going to create new problems for you.
10:59Gabrielle Lyon:That just sounds really challenging. Yeah. When someone is thinking, okay, I might have mast cell activation, how would they then go through kind of a diagnosis criteria? Or is there a criteria for diagnosis? Sure, yeah. So this can be done in an immunologist's office. This can be done in a primary care office, a functional medicine doctor's office. So you can measure the actual mediators. You can measure serum tryptase, serum histamine. in your actual, like at a lab, with a lab test, you can also measure through a urine test. The reason why these can be very limiting is because histamines don't live in our blood for very long.
11:37And if you're not in an active flare, you might not be able to see what is circulating, basically. So it's really important that if people are using that mode of diagnosis, that they actually go during a flare. I would say it's really important. And you have to be off of antihistamines to be tested for it. A kind of more accurate measurement and another way that we can diagnose, not myself, but that doctors can diagnose, is through biopsy. So you can get a skin biopsy, or if you happen to be going in for an endoscopy or colonoscopy, you can biopsy the cells and see mass activity through that as well.
12:10Gabrielle Lyon:The standard laboratory diagnostic markers of MCAS, according to this up-to-date review for MCAS, is serum tryptase with a normal level defined between 0 and 11.4 nanograms per milliliter in adults. It also, exactly what you said, studies have shown that the sample should be taken within one to four hours of the beginning of symptoms, and that that basal level should be evaluated in advance during a symptom-free period at least 24 to 48 hours after complete recovery. As one could imagine, this is not easy to do, and some studies suggest that even a normal tryptase level that that does not diagnostically rule out mcas you had mentioned and i'll just this is for the providers listening and if you are someone who is testing in your urine or urinary metabolites that other mediators such as histamine prostaglandins leukotrienes other urinary metabolites of histamines it says that they are not as well known in terms of diagnostic criteria yep what else would be a way to tell is this a diagnosis of exclusion it can be and while of course as a dietitian i'm not diagnosing anything um i will say this um i tell the story about a mutual friend of ours olivia amitrano uh who you introduced us that's right i'm responsible for the friendship you are very responsible and i'm giving full accountability and responsibility um olivia wrote an article a long time about what her number one travel tips were and what she has to pack with her when she's traveling and in that article she said i always bring benadryl with me because you never know when you'll need it and i said you'll only need benadryl if you have a histamine issue so that's a good way to know if you take claritin or you took a zyrtec or you took a pepsid and you felt immeasurably better that would tell you you know what maybe this is this is something and maybe this is a direction to look in because for people who do not have histamine issues you would not feel better taking those medications so sometimes there's a little bit of a trial and error as well i would also say that after working with probably at this point in my practice a thousand clients between myself and my practitioners there's very clear patterns that we can see when it comes to histamine issues.
14:29So clients who eat tomatoes and citrus fruits and fermented foods, if you went to a gut health doctor, these would be the healthiest foods on the list. They would say, you have to eat these foods, and they would be the exact foods that would sicken those with histamine issues. So when I see clients come in with a list, and I say, what foods do you react to? And they say, vinegar, tomatoes, spinach, avocado, that leads me in a direction of, okay, this is not a regular gut issue like leaky gut or something. They're not reacting to fiber particles. They're reacting to one specific component of the food.
15:02So it is a little bit of by exclusion and also by pattern recognition, I would say. And there are some really easy patterns to see.
15:11Gabrielle Lyon:Have you wasted so much money on skincare? I swear to you, I have spent so much on my personal skincare that my pores should be, I don't know, tax deductible at this point. But thank God for OneSkin. And here's what I love about OneSkin. They don't make empty promises. It's a research driven, minimalistic, and tested for beauty, skin health, and longevity. OneSkin is the first topical skincare backed by peptide science that targets skin aging at a molecular level. They have a proprietary peptide, which is designed to reduce the accumulation of something called zombie cells that drive inflammation, tissue breakdown, and really this is an amazing product.
15:54Gabrielle Lyon:It's not really about this cosmetic quick fix. You know, we talk all about health and wellness, but we typically talk about it from the inside. And this is something that you can put on topically to affect the health of your skin. So go to oneskin.co, that's O-N-E-S-K-I-N.co, and use the code Dr. Lion for 15 % off. What that made me think about that list, it also made me think about small intestinal bacteria overgrowth. Yes. Which is exactly what it sounds like, small intestinal bacteria overgrowth. There is a disproportionate amount of bacteria that would be less than ideal for the gut. People get a lot of bloating.
16:42Gabrielle Lyon:When you see a patient with histamine, do we call it histamine intolerance how do we differentiate between histamine intolerance and mass activation syndrome yeah so mass activation syndrome will probably involve those other mediators histamine intolerance can be you have actually a normal amount of histamine circulating you just don't feel well when you're having that amount so it's an intolerance to existing histamine that you're experiencing pretty hard diagnostically to differentiate however if someone has histamine intolerance i'm always wondering if there's mast cell involvement as well um and there is best cell involvement because that's where histamine is released from would it be safe to say that if somebody has a histamine reaction repeatedly that they should be checked for mast cell activation syndrome absolutely is there a list of symptoms a validated list of symptoms that they would say, okay, you go to your cardiologist because they see tachycardia or POTS, which I'd love for you to talk a little bit about.
17:48Gabrielle Lyon:Is there a checklist to determine? Because I haven't seen one. I have never seen a validated checklist, although, again, I think immunologists probably have access to something that's pretty, again, this clear pattern recognition. um it is not there would not be a diagnosis based on that list that i'm aware of i could be wrong by the way and i'm open to no no i i haven't seen it but you for example in low testosterone there are questionnaires for sleep apnea there are questionnaires for narcolepsy for all of these many of challenges physical challenges there seems to be a questionnaire and this would make sense that guys if no one has done this someone go do it go get on this right away because it would be really really helpful yes so this this part of the conversation i think is the most important part because the philosophical question we have is whose responsibility is it to treat mcas and what can each person do what is the role of each provider what's the scope because this information around mcas is exploding very recently the first practice paper i believe was only in 2017 maybe 2019 so um it's all very new and we've also seen an explosion of mcas with long covid so the question is where's each of our roles i think and it's really really important because if someone again if someone has a pounding heart when they stand up and their heart rates jumping up severe tachycardia which is a frightening experience, you think you're having a heart attack, you don't know what's going on, you're so dizzy, you can't move, people can't walk when that reaction's happening, where would you go, Gabrielle?
19:31You'd go to the ER, you'd go to a cardiologist's office, but there's no cardiologist who's pulling out a list of histamine intolerance checklist when someone's coming in. They're going to do an EKG. They're going to do what they need to do to make sure that their heart as a muscle is functioning. The issue is that histamines, one of their main functions is to cause vasodilation, which we'll go into more deeply, but it's not that the heart itself is not functioning. It's that the brain is signaling and the mast cells, the immune system is signaling for the body to operate in a different way. So it's really challenging for doctors because that's not in their inclination and it shouldn't be.
20:07They want to make sure that muscle is working, that the organ is working. So it's really challenging when clients go to the ER because you can get any emergency sign you can think of, respiratory rate changes, fevers, obviously any visible signs and things like that heart rate so the question is what is each of our role i think because it's really tricky and it really conceals itself as other conditions as well
20:33Gabrielle Lyon:what would the diet look like is it fair to say that there is a diet to help modify these symptoms in the short term and then I'm curious as to treatments in the long term absolutely yeah so let's say someone let's say we have identified a root cause for MCAS let's say we know someone's living in a moldy home let's say actually someone has SIBO because SIBO is actually one of the syndromes or conditions that we say travels with MCAS so they often have um overlapping EDL, like symptomology as well. So if someone has these symptoms in the short term, or we've even identified the root cause, you still have to treat the symptoms first.
21:16This is very different than other conditions, because if you know that mold is an issue, usually you treat the mold, right? If you know that parasites are an issue, you treat parasites. Because histamines are so react, our immune cells, our mast cells are so reactive to any type of detoxification, including a vitamin C supplement. I had a one-week reaction with fevers because I got a vitamin C IV.
21:40Gabrielle Lyon:Wow. This really brings me back to remember my New York practice. Of course. We had a patient that reacted to vitamin C. This was before I was even thinking about mast cell activation syndrome. And we were thinking to ourselves, how? We don't believe this. We do not believe that she is reacting to vitamin C. Tell me more. Yeah, so it's really funny because those patients are my only clients. So I only see the people who have those reactions. And those reactions have exploded since COVID, by the way. So it's impossible to believe that something that's healthy for someone can create severe symptoms.
22:16It's not logical, almost, right? Why would someone drinking lemon water make them violently ill for a week? It's like defies our understanding of the human body, almost, because it acts in this very odd way, basically. So vitamin C is powerfully supportive for our immune system. In mast cell activation syndrome, your immune system is not hypoactive and it's not autoimmune, it's hyperactive. So it's constantly turned on essentially. So anything that enhances an immune response can also enhance a mast cell response as well. The other issue is if you are not draining or detoxing properly, you can have recirculation of toxins.
22:53What does that mean?
22:55Gabrielle Lyon:does that mean liver removal yes does that mean going to the bathroom removal liver removal so any if any step in the detox and drainage process is inhibited you can have recirculation of toxins basically so in SIBO is a great example you have this bacterial overgrowth and your body is like let me mount an immune response to help you to get rid of this and to move this through but you don't you you cannot handle the added immune and detoxification response so it is a body that is in a state of turned on too much so anything that enhances the detox response that could help you you actually can't do which is really really frustrating in treatment that would be really again very challenging here i'm just going to read this this is the relationship between SIBO and MCAS is as follows SIBO and this is for my science nerds in there dad i hope you're listening SIBO causes the activation of the mast cells and increase in T lymphocytes.
23:52Gabrielle Lyon:T lymphocytes in turn secrete microparticles that again activate mast cells. Activated mast cells and T lymphocytes release cytokines. This increases intestinal permeability and leads to this vicious cycle. friends why this is so important is because when you hear mast cell activation or when you hear SIBO you must have a mechanism of action absolutely when we don't have mechanism of action and the way that I would think about this is red meat causes cancer colon cancer or red meat causes cancer what is the mechanism of action this has a clear mechanism of action how do we begin in treatment because obviously people would think, oh, well, I'm going to take vitamin C.
24:41Gabrielle Lyon:I'm not feeling well. But actually, before we go to treatment, give me some other items that people would take. You said vinegar, avocado, any of the foods that seem to exacerbate small intestinal bacteria overgrowth. I did a episode with Ken Brown, Dr. Ken Brown. He was amazing. if you guys want to learn more about SIBO. We should link to that episode here. Vitamin C, what else? Yeah. So from a histamine food perspective and the original question, yeah, absolutely. The original question you had was like, what is the diet, the deal with the diet piece of it? And we will talk about that, of course.
25:18So the foods that are high in histamines or can cause the body to release histamines are vinegar, citrus fruits, spinach, avocado, tomatoes especially like aged foods unfortunately pickles for me it's a major loss it's actually the only high histamine food I can't eat chocolate everyone's mad at me for saying that one alcohol anything that's aged the the food itself can build histamines over time basically because histidine gets converted to histamine in the aging process fermented foods those gut healthy foods miso natto fermented vegetables like these foods that again are so objectively healthy they have a high histamine content or they cause the body to release histamines.
26:00Bananas are another one. Spinach. Would these reactions happen immediately? Depends. It's a great question. Yeah.
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26:08Gabrielle Lyon:Or is it over time, for example, the person who eats a ton of bananas one day can't tolerate bananas, or I used to eat, you know, like my producer chugging vinegar, he maybe could do it and then all of a sudden he can't do it anymore. Absolutely. Yeah. So it depends on where you are in that bucket theory, right? Have you had a lot of other environmental toxicants, stress? Have you been exercising too hard? And exercise is something we have to talk about because it's not sad because exercise is essential for POTS especially and MCAS, but everything's about titration and everything's about creating safety in the body first and you have to do things in a certain order.
26:45So the answer is this. Does a low histamine diet treat the root cause of MCAS? A little bit, but not totally. The way that it does a little bit is because unfortunately our body has this very odd mechanism where the more histamines that are present in serum, the more the body creates histamines, which I'm like, don't do that. We have enough clearly. So the problem is if you eat high histamine foods, it enhances this cycle that continues as well and can cause drastic symptoms. And when I say drastic symptoms, I mean violent digestive issues for days at a time. Could be all the way up to vomiting.
27:20It could be migraines. I mean, these are really, really intense symptoms, not just that little rash that people think of, which is also a common histamine symptom, of course, as well. But these symptoms are so drastic. And it is hard because you can have a reaction within minutes or the reaction can be delayed like 12 hours later.
27:37Gabrielle Lyon:That was going to be my next question. does someone have an immediate reaction? And if we're thinking about diet, obviously you're removing those things. Is that the first step? Yeah. So I would say in any protocol, so this is the same thing with supplements. And when we were talking about supplements, vitamin C, vitamin B, especially glutathione, anything that's enhancing that detoxification or immune system response. But really people with mast cell activation syndromes, I think of our bodies as, and these highly sensitive bodies, as bodies that are on guard. So anything that's perceived as a change to the system can be really challenging.
28:14So it's those supplements that enhance the immune response, mitochondrial response, or detoxification, or anything that's new to your body, unfortunately. And it really depends on the state because I can eat 10 bananas a day one day. The next day, if I took a flight and my mast cells are already irritated, I might not be able to tolerate them. So it is really challenging to kind of chase. But in the beginning, you have to stabilize two things. Of any mast cell journey, you have to stabilize your histamines and you must stabilize your nervous system because our nervous system and our immune system are intricately connected.
28:49And in mast cell activation syndrome, there is no way that your mast cells can be calm if your nervous system is hyperactive, because that's the number one signal for our mast cells to activate. And they literally communicate with each other. Mast cells are also considered neurotransmitters and are released by our hypothalamus as well.
29:09Gabrielle Lyon:With histamine stabilization and nervous system stabilization, can you give me a sample-type protocol? And we've actually worked on quite a few patients together. And there's this one patient that I'm thinking about, and this was... she had long COVID and we should talk about long COVID ACE receptors and this MCAS connection. We started her on Pepsod. We gave her a handful of items and it seemed to really improve her symptoms. So let's start with that. Yeah. And I'm going to actually mention a case study with a different client and why Pepsod even came up to me and why I even started thinking about Pepsod.
29:53I had a client who was on eight psychiatric medications. Actually, she had a fantastic psychiatrist and it was all for insomnia. She had untreatable insomnia. She was sleeping one to two hours a night. Then maybe like the third night she would get like five or six hours. But it led to the point where she had like paranoia and hallucinations. Her insomnia was so severe. In my emails to stay up to date, I always get these medical lectures.
30:15Gabrielle Lyon:And I recently listened to a lecture from an academic MD-PhD about magnesium. I have to tell you, it completely changed my perspective from a scientific point of view on magnesium. One of the most common causes of headaches, you won't believe it, is a magnesium or could be a magnesium deficiency. And you can test for this in the blood. There are hundreds of biological processes that magnesium is responsible for and the absorption in our diet is not great. And after listening to this lecture, I am more convinced than ever that taking magnesium can be helpful. Also, 75 % of Americans are deficient That means three out of four of you listening to this podcast may be deficient.
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31:45and at some point I started noticing she had other histamine reactions so I said why don't we try pepcid which is actually an antihistamine the reason I even thought of pepcid is because I had seen a study um they studied 16 people out of who were inpatient in a hospital and they found that 14 out of 16 of them had an 80 reduction in symptoms with the intervention of 80 milligrams of famotidine which is pepcid and I was so shocked because I was like what the heck does pepcid have to do with long COVID symptoms? Why would that make a difference? And it's actually because Pepsid is an antihistamine, which most people don't know.
32:21And I think this is a little speculatory, but I think because it works on the gut, I notice it helps with a lot of neurological symptoms for people and nervous, like numbness, tingling, that zingy feeling, because I think it's the vagus nerve impact. So it works even better than some of those H1 receptor medications. So she took Pepsid and it's been five years. She's never had trouble sleeping since. Obviously, she worked on the rest of her medication protocol with her doctor. Dietitians actually can recommend over-the-counter medications. And we worked on that together. And she has not said the word sleep to me in five years, basically.
32:55So weird. Yeah.
32:57Gabrielle Lyon:That's wild. Someone listening to this and they wanted to take matters into their own hands. Obviously, we always suggest we don't give medical advice here, but this is for educational purposes only. you start a lot of your patients on pepsid that have this do you take them off of supplementation I know that you use a lot we both use a lot of electrolytes yes absolutely tell me a little more and why what yeah it is that we are using so the first round for us is always those two things histamines nervous system the deal with histamines and the mcas is that you have to kind of radically drop those histamines down because if you're in that symptomatic state your nervous system is going to be so active and it becomes this cyclical um state of existence and unfortunately for people again gabrielle we're really talking about people who are mostly many of them are unable to work because if they walk into an office where they recently used bleach they're having a potentially asthmatic reaction to it right they're having um such a severe reaction to environmental triggers or going out to dinner with friends and having something that's super healthy and ending up, again, violently ill.
34:08So in the beginning, I will often, even as a dietician, recommend over-the-counter medications, a combination of H1 receptor, medications like Claritin, Allegra, or Zyrtec, and then probably a combination of Pepsod as well. The question that's going to come up in your amazing medical community is, well, Pepsod lowers stomach acid, and low stomach acid is a huge problem, Michelle. So in this population, it's interesting because they actually may have higher stomach acid because stomach acid and mast cells releasing histamine, it's a direct relationship. Higher the stomach acid, higher the histamine release, higher the histamine release, higher the stomach acid.
34:48This all happens on the parietal cells. H2 receptors are very, again, there's this cycle that happens. So what you have to do in the beginning is, whether it's over-the-counter medications or supplements, like we use perilla extract, PEA, quercetin. Again, we can't use vitamin C in the beginning usually, but we will take people off of the supplements they're on most likely because we don't know what they're reacting to. And we will just focus on supplements that'll help the nervous system, mindset work that helps the nervous system, and then also anything related to histamines to bring down that response.
35:20Gabrielle Lyon:When you focus on their diet, is it mostly proteins? What kind of foods do you typically have them eat? yeah fresh protein because leftover foods can also again the older a food is uh the the more it can develop that histamine response so fresh meats many vegetables outside of the ones i named are fantastic fruits usually are fine outside of those citrus um and raspberries unfortunately and strawberries um but there's and tomatoes as we talked about but there's basically most whole foods most carb foods are low in histamines as well so you can eat a whole foods diet it's just being selective with those foods.
35:56So we will go on at probably an 8 to 12 week low histamine diet. There's some research about low oxalate diets as well. I haven't seen as much positive response. It's really hard because people can still have histamine issues while they're on the low histamine diet because, I don't know, they have an abusive partner and that's the reason that their mast cells are activated. So it's hard to know the exact reason, But you can see some really tremendous symptom improvement from that low histamine diet. And it's still so essential to eat those whole foods during that time and very possible.
36:31Gabrielle Lyon:So 8 to 12 weeks on a low histamine diet, whole foods, taking some form of typically an H2 blocker. And H1, a combination of H1 and H2. Yeah. H1, H2 blocker. That's one side of the equation. is there something to directly work on the nervous system would that be meditation are there other obviously you're probably they're not seeing doctors and going on ssris how are we stabilizing the nervous system by the way that's a really good point too because a lot of medications can cause drastic reactions so it's really hard for people to find out which medications help or hurt as well so when it comes to the nervous system and mass cells I have this visual for mast cells.
37:20I almost, and I feel really silly saying it here, and I hope Shane doesn't think this is extra silly, but I kind of think of mast cells as like the guards on the watchtower of a battle that just happened. They're kind of like looking to make sure they're witnessing the battle and then they're deploying resources after to help clean up the debris and also to prevent that from happening again. So the problem is that people with extremely uncomfortable and frightening symptoms get really scared when those symptoms happen. And this is what keeps mast cell activation going. It's really challenging for me to look at someone who's been sick with painful, frightening symptoms that no doctor has been able to help them with and say, I need you to be calm when these symptoms come up.
38:02And I need you to find a way to be non-reactive to these symptoms. So there are actually brain retraining programs that help retrain our limbic system, which is our hypothalamus, hippocampus, and amygdala, which will process our threat response memory and basically again is deeply integrated with this mast cell response so it's really interesting because these brain retraining programs are one of the top ways to support MCAS the GUPTA program DNRS primal trust and it starts in the brain so we often think oh maybe mast cell stabilizing medications like chromaline sodium ketotypin but in reality starting in the brain is the most important thing at home I'm not asking people to meditate and do things like that even though it's essential because the symptoms are so loud that sitting in them can be really challenging so what I invite people to do is to just ask themselves questions and get really curious about their symptoms and just ask yourself I have people just tap their heart and say what do I need what do I need in this moment and really just at home again this is temporary I know how horrible this is I've personally experienced these symptoms to an extreme degree so I understand but anything we can do to become non-reactive really really helps in the long-term treatment of these conditions and our mutual client I had that it's a hard conversation to have because I'm like it's not your fault that your nervous system is so reactive
39:27Gabrielle Lyon:but we have to find a way to feel safe again and what is fascinating about it is this is not something where individuals are usually very reactive and they're having these experiences in their body that are real and they are coming from white blood cells and and other portions of the body that are really pushing up anxiety I was reading one thing about migraines they believe that mast cell activation seems to play a significant role in the pathophysiology of migraines I'm I'm bursting at the seams to talk about this. Yes. Don't go. Burst. Don't burst too much. So one thing, one of the functions of histamines is to cause vasodilation, okay?
40:11The widening of our blood vessels. And this is, you have such an intelligent audience. They're going to be like, Michelle, please don't explain vasodilation to me. No, please do. You know? Please do. So I want someone to think of a scenario where they've had this experience where they're in the shower and suddenly they feel really dizzy when they're in a hot shower and they look down, they see their legs are red and their heart rate is pounding. Why does this happen, right? So what's happening in that situation is that heat and histamines both cause vasodilation. So if our blood vessels are wide open, we're standing in the shower, it's steamy, our body's standing up straight, gravity plus vasodilation will pull blood down, and blood will pool down.
40:45So blood pooling is a big component of both mast cell activation syndrome and POTS, postural orthostatic tachycardia syndrome. So when the blood pools in our feet and legs, you see it on the surface. That's the opening of those blood vessels. You see all that redness. and then what's happening is your heart and your brain don't have blood flow going to them. Now, of course, they have some blood flow going to them, but there's limited. So what happens is your body starts pounding your heart to get the blood flow back up to your heart and your brain. The dizziness comes because you're not having blood flow to your brain and your heart starts to pound because it's not getting that blood flow.
41:18So in a histamine response, again, what you can C is blood that's pooling in your extremities, dropping down because you're constantly having that vasodilation. All right, this is my big moment, okay? Migraine medications are what? They're vasoconstrictors, right? We think of Excedrin migraine that has caffeine in it. We think of what helps people with migraines. There's this very popular trend that's happening online where it's like, have a Diet Coke and French fries. I'm like, don't. I'm like, there's other ways. There's other ways. We think of electrolytes that help people with migraines. we think of cold compresses that help you with migraines all of these have vasoconstrictive properties migraines we've known for a long time are vasodilation issues and histamines are potent vasodilators so i believe that the root cause of many people's migraines there's many root causes of migraines can be histamine issues because of this vasodilative feature which is um i think one of the roles of histamine that creates the most havoc in the body symptom wise i have had many patients explain that scenario to me doc i was in the shower and i don't know what happened but i
42:27Gabrielle Lyon:started getting red and lightheaded how do we treat them in that moment is that a pre-treatment with h1 and h2 or is there a different way what are your thoughts on that it's the it's the exact right questions so this scenario is very common in people with this um syndrome postural ortho attack orthostatic tachycardia syndrome which we did not really yes into and i'd love for you to yeah that'll take us into that because this is one way where those two are very related i have a joke about pots the way that we treat pots in conventional medicine is we kind of create a gogurt tube through your body so we compress your stomach we wear an abdominal binder you squeeze it it helps the blood flow go up.
43:10We wear compression socks. We kind of squeeze your body like a go-gurt tube and just bring the blood flow back up, right? And you know this from all of your extensive years in practice and training, but if someone has like low, you know, blood pressure, you might have them put their legs up on the wall. Basically, the goal is to get blood flowing back up. Now, POTS, we think of as maybe that's a cardiac condition, right? It has to do with how fast your heart rate is jumping when you make a postural change. When in reality, POTS is a form of dysautonomia. Wait a second. It's a nervous system disorder.
43:43It's a dysfunction of your autonomic nervous system. So that means that treating POTS is not about treating your heart in most cases. There's different types of POTS, three. One is hypovolemic POTS, which is that you just have low blood volume. When you don't have enough blood volume, you don't have that pump. And then again, your heart will start pounding faster. We often think of POTS, we're like, why are people's hearts pounding so much? They get put on propanolol, metaprolol, like anything that beta blockers to help bring the heart rate down and stabilize it. In the case of hypovolemic POTS, the treatment is also to have not only this compression, but to have 10 grams of sodium per day additional.
44:25So we drink Element, right? Element tea. That's one gram of sodium. We're talking about 10 Element packets. And again, it's to enhance basal constriction and increase that blood volume essentially, and to help so that there is that blood flow, and that blood volume will help to enhance the blood flow. The second type of POTS is hyperadrenergic POTS, which is you're having this hyperadrenaline response. These people do not have low blood volume necessarily. They're having an adrenaline response that is causing their heart rate to go really high. Very related to mast cell, both of them. Again, in this feature of mast cell activation syndrome enhancing that vasodilation, causing leakier blood vessels, POTS and MCAS are connected right there.
45:09And it's really important. And then idiopathic POTS, which is there's actually some sort of blood vessel damage that's causing it.
45:15Gabrielle Lyon:How long does it take to treat POTS? Would you treat POTS or MCAS first? because they're almost as if so POTS is this downstream effect of MCAS. However, it seems that what I'm hearing you say is for the treatment of MCAS, number one, regardless of what is causing it, you have to stabilize both histamine and nervous system. But histamine is kind of a catch-all term for the multiple other responses it could be, right? absolutely it could be prostaglandins it could be leukotrienes it could be it's inflammation right in some level it's the immune system and then the also you need to block the histamine symptoms on some level because people are unable to work and live their lives um it's it's really excruciating there was one study out of the university of college london that stated that those with long covid which if you ask me i think it's a composite of mcas and pots in almost every single scenario had worse quality of life and more fatigue than those with stage four cancer and stage four cancer-related anemias.
46:26And it's because the symptoms are so drastic and so intense and no one knows how to help them, essentially. So I think that if you have a POTS issue, and I've never seen someone with POTS who doesn't have MCAS.
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47:27Gabrielle Lyon:You'll find recipes. I am so honored that they are helping to support this podcast and your journey to be forever strong. The Beef Nutrition Team at the NCBA is made up of dedicated educated nutrition scientists and registered dietitians who are passionate about sharing accurate science-based information. Go to beefiswhatsfordinner.com. But you said something, Gabrielle, it's going to be Dr. Gabrielle Lyon that is going to be so profound for people. You said POTS is a downstream effect of MCAS. No one says that. Just so you know, that's not common in the conversation. I believe that to be true.
48:07I have never seen a potts client who doesn't have mcas so the question is how do we stabilize him histamines to stabilize symptoms and then with pots you must recondition you have to because it's blood flow right that's a huge piece of it and you have to you have to have a tremendous amount of electrolytes and you have to hydrate really really well that brings us to exercise how does that happen how can we manage exercise dealing with POTS or MCAS.
48:36Gabrielle Lyon:And I've had patients with POTS who probably have MCAS, but the major presenting symptom is this exercise intolerance and heart rate changes. Yes. And those symptoms, I don't think we can overstate how absolutely terrifying those symptoms are, by the way. It's not just like, oh, my heart is fluttering. People feel like they can't see. It's excruciatingly anxiety-inducing. And the anxiety around POTS, especially hyperadrenergic POTS, you have this, it's like a, I can only describe it as a very full-body anxiety where you feel like there's ants crawling under your skin. You've had it. Oh, have I had it?
49:13People don't know your personal story.
49:15Gabrielle Lyon:You have had POTS. MCAS. MCAS. Hypermobility and long COVID. Which we should talk about the connection between hypermobility and MCAS. But after you finish telling us how we are going to exercise, because this crew, they want to train. Heck yes. And it's the most devastating for this crew because, first of all, being unable to exercise doesn't make exercise less healthy for us. So it's like we know the information. You have told us this information yourself. You've devoted your life to telling us this information. And it doesn't change the information. It just means that we might have to build our tolerance to it.
49:52we you know i've had so many clients gabrielle where they're at the point where they can't walk
49:57Gabrielle Lyon:10 steps so what do you have to do what do they do when they walk 10 steps they just feel out of breath or yeah so um so dizzy that they might actually faint um some that pots there's a huge fainting component to many not every single person has that symptom um their heart rate is is so rapid again that they could immediately have this like feeling when they stand up so dizzy the heart pounding so profound, it just basically like pulls you back to sit down. And those episodes from just standing up once can leave you with that anxiety and that adrenaline response for days. So it really makes people feel so frightened.
50:33And it's actually with mast cell activation syndrome, you can also have pretty profound exercise intolerance, and they would actually get full body rashes, and then what feels like a flu, basically. So the answer is how do we titrate it specifically something else that's very very important with pots is something called upper cervical instability which happens in hypermobility that i know we're going to talk about but really with pots it's about protecting your neck because if there are if there's any instability in your neck all the nerves that control your heart rate are in your neck right they're running down we talk about the vagus nerve all the time in ways of digestion and ways of anxiety but think about the fact that the these nerves are going to control that heart response and it's a it's a nervous system condition it's a nerve condition right so it's really important there's actually a type of exercise protocol called the chop levine protocol it's a free pdf they have online um it was developed for people with pots to increase their exercise tolerance all of the workouts are very specific to not be you're not doing standing up exercise to start with right you might be doing recumbent because you don't want that blood flow dropping down, not getting the blood flow back up to your heart.
51:46And then also they're really mindful of neck as well.
51:49Gabrielle Lyon:Is there one modality of exercise, when I say one modality, is it easier to tolerate resistance type training than it would be walking or cardiovascular activity? It's an excellent question. I think it depends on the person, I think people can probably tolerate low weight resistance training easier than cardiovascular to start with. It would make sense because, again, we share a few patients together. And when those patients do a lot of walking with weights, they feel terrible. And these are regular exercisers. Typically, we have a handful of patients who have had long COVID and that seems to be their response if we don't titrate it really, really slow.
52:43Gabrielle Lyon:How fast do you think, and again, I understand that this is individual, how fast do you think someone could titrate up movement? It really depends on the person. It depends on their exercise capacity before, and it depends on how much can you control those histamines honestly what about the hypermobility part you had mentioned earlier that there is um connective tissue potentially bone joint involvement in this talk to me about that so our connective tissue lines all of our joints bones and organs in our body and our blood vessels most importantly too which is what will come into play with how POTS and hypermobility are related.
53:31Hypermobility as I'm talking about it is probably a collection of conditions that are connective tissue disorders called Ehlers-Danlos syndrome EDS. I have HEDS hypermobile Ehlers-Danlos syndrome. Ehlers-Danlos syndrome.
53:44Gabrielle Lyon:Wait did you just say you have? Yeah I sure do. I remember do you remember when you called me and you were like Gabrielle you do you remember you won't believe it can you just share because this really plays into this Ehlers-Danlos. Absolutely. And just share a little bit about what you were going through. Yes, absolutely. So I had moved to, so embarrassingly for me, I had moved to New Jersey from Manhattan, but I was right over the bridge, but I needed a car basically when I got there. I had gone through a mold detox in my apartment in Manhattan. I moved to New Jersey because I had such a severe and profound mold.
54:18I mean, there was mold. It was such a good apartment. Otherwise, it was very hard for me to leave. Yeah, you did not want to leave. how long were you there i was there for two years you were there for two years so i was not planning to leave and then i walked into my bedroom of that apartment and i saw my husband it was like the movie interceller like he was coughing up along and i'm like are we in a dust storm in here i'm like we have to leave this apartment like i know i have weird reactions and i was having symptoms that were again dizziness i was like maybe this is a thyroid thing i was like oh you know i'm having gut conditions i'm gonna get a gi map let me see what's going on nothing was really showing up.
54:52I was like, oh, now I know it's mold related. So I went on a mold detox in that apartment. It was like the sickest I ever was in my life. And I just, I mean, Herx reaction, those symptoms where you feel like your body is going through such, you're in a flu state, dizziness, anxiety, insomnia. So I left that apartment. And when I moved, I had to start driving. And when I started driving, I started getting a lot of dizziness when I was driving. And I was like, I thought these symptoms were gone. I then had COVID again. And then I went to a chiropractor and the chiropractor did an adjustment and he said oh my you know i've never felt a neck this tight in my life so he took this like metal tool and chiropractors who are listening are gonna be like i know the name of the tool i don't i'm sorry dug into my neck did not assess me for hypermobility and basically on a very small level loosened the joints in my neck i walked out of there and i don't i actually don't mean i walked i crawled out of that appointment and i crawled directly to the er um i could not stand up without my heart rate going up to 160 i mean i i was sitting it was 80 160 within one second i crawl i was on the phone with my sister crawling on the cement in an urban place crawling to the er i said what just happened to me um i it took me a long time to understand how mass activation syndrome and because i kind of knew there was a histamine thing i kind of knew that something was going on but to pull this all together wait it was
56:13Gabrielle Lyon:this when you i i think i would i wanted you to come to something and you were gonna come but you weren't sure because and then you were wearing a neck brace was this during that time do you know that I would risk my life to do a talk with you by the way so this is the funniest thing you were doing we were it was for your book we did a Q &A for your book and you invited me and it was one of like the biggest like like the biggest joys of my life and I was like all right Gabrielle I cannot fly to come see you but I will I will film in Manhattan you will film there I came in a neck brace my tolerance for even sitting up because my the hypermobility situation was so rough and again he had the chiropractor had loosened all the joints in my neck my nerves were so inflamed from that and your brain has to send the signal to your heart to pump that's what i think people don't understand about pots it's not a heart condition it's a brain condition your brain says send blood flow here activate this muscle do this in hypermobility which is a connective tissue disorder that relationship is not there and we also don't have the structural support because connective tissue holds us up and it gives that structural support so if you don't have proper connective tissue development and someone goes like this with your neck what's holding your neck up so i went to that i went to that q a with you and in between takes i would take off my neck brace i was literally we can show people the video i was like this i was like so tell me about forever strong i was like and you're like a great job but we didn't use it we did not end up using that yeah but you didn't know you had ehlers-danlos and i want to talk a little bit about it's a it's a group it's a genetic disorder and it's mixed connective tissue it is is it uncommon i think there are degrees to it so it the amount of women who are hypermobile but don't you can hypermobile and just have um basically like just different joints in your body are hypermobile but not have ellers danlos the numbers are over 60 i believe of women are hypermobile so hypermobility is not necessarily a connective tissue disorder the rates of hypermobility are very high though and people also need to work out differently when they're hypermobile which many amazing chiropractors personal trainers know and i actually have a personal trainer who specifically works with hypermobility shout out to taylor goldberg she's the best um and shout out to Taylor Goldberg you know you've got Michelle Shapiro I said Michelle do you want to come train with us this morning she goes ah no I am gonna stay at the hotel gym and I'm gonna lift my 15 pound weights that's exactly right um yeah and Taylor tells me what to do she's one of the only people I let bully me besides you Taylor you're fired but uh okay well I guess you also threatened me and said to go in the ice plunge I'm like you gotta give me a break oh yeah I am really actually glad you brought that up i do want to talk about other modalities first so i'm gonna write this down ice plunge yes and and for it's all a way to talk about yes yes how can someone assess for ehlers-danlos and what is the relationship between ehlers-danlos and the association with them, Kaz.
59:23Yes. So Ehlers-Danlos Syndrome, there's 13 different types of EDS. Hypermobile EDS is one of them. There are genetic tests for almost every other type of EDS besides hypermobile. That's done through assessment, basically. But there's some genetic markers that lean towards it, like Cole 5A1. There's some that we know. There's one type of Ehlers-Danlos Syndrome that's really important for us to talk about because it requires additional testing, and that's vascular EDS, which means that again your blood vessels can become leaky and this is if someone has vascular eds they could die in pregnancy it's a very it's a profoundly important thing that we anyone who has ellers daniel syndrome gets an echocardiogram not an ekg an echocardiogram because you have to make sure um that there's not going to be you know even like a rupture um of those blood vessels so just understanding how important our connective tissue is uh there's assessments that can be done and also genetic diagnostic features for EDS as well.
1:00:24So if our mass cells live in our connective tissue, and you have taught us this more than anyone, Dr. G, is our connective tissue, like our muscle, is endocrine facing, it's immune facing, it doesn't just sit there. And if we don't have the structural support from connective tissue, and if there's connective tissue dysfunction, and our mast cells live in our connective tissue, there's going to be communication errors that happen. And that is going to activate mast cells. And the same thing with POTS, you have constant mast cell activation syndrome that can lead to leaky blood vessels as well with the constant inflammation and the vasodilation pushing outwards.
1:01:04And then you have this kind of cluster of what we call the triad, which is symptoms from any direction.
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1:02:45Stay hydrated, stay strong. The biggest challenge is, well, are you having a hypermobile symptom day or are you having a mast cell symptom day? Because there's different symptoms for each one of these. So it can be challenging, but I know my client's body so well where I'm like, all right, it's a hypermobile day. ice up and something i need to mention because it's your podcast of all people is that one of the most important things we can do as hypermobile people is build muscle because we do not have the structural stability from our connective tissue something's got to hold us together right muscle will put those bricks those building blocks in your body to hold you together and get that proper blood flow because there's this severance of this brain blood flow connection that happens in hypermobility and you have to have muscle to reestablish it and to structurally hold you together it is the only like it is the most important thing we can do what i'm hearing you
1:03:40Gabrielle Lyon:say is that muscle is the organ of longevity tm the most important structure in our body i really have to say it it absolutely is and it's 100 the thing we can control it helps with pots it helps with hypermobility and because it has this anti-inflammatory effect it also helps with MCAS this makes me think about a sport injury for example you know I I'm not sure the amount of mast cells that live in any portion of the tissue for example in your connective tissue your tendons do they live in tendons and ligaments as well just connective tissue just connective tissue if someone injures their connective tissue in some kind of sporting injury would that cause a cascade of mast cell activation a hundred percent absolutely yes especially because it's in your joints too and there's you know there's kind of this like echo reaction that happens our entire body is so intricately connected we like to think that if we have anxiety it's in our head we like to think if we have an injury in our leg there's systemic communication between injury and also injury is going to stimulate your immune system as well so absolutely the sauna and cold plunge i i've been trying to get you to do that i use this all the time the mast cell activation obviously there's different phenotypes for lack of a better word whether you are muscle activation with small intestinal bacteria overgrowth whether you have pots and muscle activation or you have Ehlers-Danlos and mass activation.
1:05:22Gabrielle Lyon:Are there adjunct therapies that are more beneficial for one group than the other? Yeah, absolutely. I think cold therapy and ways of cold compresses on your neck is really powerful for POTS, again, like vagus nerve support. So we talked about step one and step two with MCAS. What do we do? Stabilize histamine, stabilize the nervous system. Well, what's the rest, right? What fun do we get to have after? Once you have your immune system and your nervous system stabilized that's when you get to have fun because that's when you can say let's go for a mold detox let's use infrared sauna that's how you're defining fun we can't wait a second that's how you define fun are you kidding me i came here to visit your family i was thinking it was rocks and yeah but for you more intense exercise is fun and it's true because then you can start to dig at the root cause after so you can do all of those root cause things.
1:06:16It just takes more time. You have to stabilize first. So infrared is tremendously supportive from a detoxification perspective, from a nervous system perspective, in innumerable ways that Dr. Alexis Callen has told us about so many times. But it really can be so helpful for those with MCAS, and it can be really soothing for people as well. But infrared is a huge bucket filler for MCAS in the beginning. So when you are still stabilizing histamines or stabilizing your nervous system, we cannot push detoxification and we cannot push heat changes. Because much like exercise intolerance, heat intolerance and cold intolerance and temperature changes can trigger these symptoms.
1:07:00Gabrielle Lyon:Okay, I cannot validate some of these items on here, but I want to talk about them. And that is a histamine-estrogen connection. Women with histamine issues, from what I'm reading, often feel sick days 6 to 11, days 19 to 21, rather than when they have menstruation itself. Is this validated? Yes. Okay. Yes. Talk to me. Totally validated. Histamine-estrogen have a direct relationship. It's a well-known, well-established relationship. so when you have clients coming to you any of us have clients coming to us with regular PMS symptoms PMDD there's a very targeted window that we assume that symptoms are going to happen they're going to happen the week before someone's period comes in those with histamine issues or POTS their symptoms generally start about day seven of their cycle it could even be as early as day six and then up until ovulation so when estrogen starts getting released that's when the histamine reaction starts so it's not even at the peak necessarily that people experience it but on the way to ovulation and then there's a second estrogen spike in the middle of our luteal phase and people will notice around 19 to 21 another set of histamine symptoms this was one of the hardest things personally for me to figure out i was on reddit like why feel sick when period end like what where are you getting that information like to establish this connection and it's so exciting for me to talk about because just knowing information about histamines can be healing and that's not the same for leaky gut that's not the same for other conditions understanding okay i need to maybe slow it down in ways of like my vinegar intake during days you know 6 to 14 and just be mindful of that or i need to take my antihistamines on those days because you can then understand what is going on in your body imagine you just feel really weird every day seven of your cycle like everyone's like what is this so it's a clear and established connection and it gives people a lot of relief to understand why their body might be operating on a different system.
1:09:08Gabrielle Lyon:Another thing that I'm reading here is that increase in estrogen increases histamine release. What about those on for example an estrogen patch? I have but in our practice in strong medical I have very rarely seen patients go on an estrogen patch and say they feel worse. Maybe they don't notice it is there is this true is this something that you see but they're also on progesterone we never give unopposed estrogen and maybe it's the progesterone that helps regulate it the ratio is important as well of estrogen to progesterone so i would say in all of my clients who are on hrt and have mcas they do notice a reaction with estrogen they also notice reaction with progesterone even though progesterone is actually mast cell stabilizing it can create issues because progesterone causes laxity in our joints.
1:10:00So that can cause hypermobile symptoms for people. So it's like a catch-22 a little bit. However, if someone needs hormone replacement therapy, we have to find a way to reduce the symptomology to have them tolerate the medication that's essential for them. Do you find similar symptoms? For example, someone who is using an estrogen patch and
1:10:21Gabrielle Lyon:the subsequent histamine release? Yes, I do. What is it? So it's the same reaction. Whatever their, I say mast cells show you the symptom you want the least. For me, I hate insomnia. I hate dizziness. So that's, my nervous system gets reactive, right? Versus someone else, they hate having cold symptoms or a rash that scares them. You know, it's like histamines will get your attention in the way they need to. So depending on what your symptoms are, digestive, nervous system, urinary, rashes, or otherwise, that's what will show up for you and your flare state. also reflux is not just a stomach issue absolutely often a histamine response absolutely would that happen in general or just after being provoked meaning after they ingest something uh so it can be that you just have this hyperactivation and this the parietal cells releasing too much stomach acid and being signaled again because the h2 receptor so it can be that someone with mast cell activation syndrome just has a lot of acid reflux and I this is a really little hack is that baking soda both stabilizes mast cells and helps with acid reflux so it's like a really eighth of a teaspoon in water like little hack that people can do especially if they don't tolerate pepcid um but I don't use pepcid for acid reflux by the way I use it for histamine issues which is really funny because that's how people usually and you use baking soda for acid reflux yeah exactly it's like the it's like totally flipped exactly um but and we will say it tastes disgusting it's horrible it's salty it's not like salty in a fun element way it's like a salty in a bad way like armpits or something yeah it's bad not that i taste armpits but but it i will say and there's also tri salts um which can be really helpful for people as well but a lot of reflux what i'm focusing on is how do we soothe so it might be slippery elm marshmallow root um herbs that can be supportive but a lot of the reducing the inflammatory histamine response is also just about reducing that inflammation not only reducing the acid output are there supplements that could be beneficial meaning fish oil or other items that seem to taper it that we haven't really talked about for hits for mcas specifically yeah i think resveratrol is incredible quercetin perilla extract pea um i so i think most people with histamine issues have a major omega-3 issue but most do not tolerate fish oil still too reactive um they take it and then they might get itchy or whatever their histamine reaction is and also um people with because in ehlers-danlos syndrome you're going to have junctions and joints and flaps that are going to move slower your digestive tract is going to move slower um things are looser along the way you're going to have a different slew of digestive issues so a lot of people who take fish oil may experience bile reflux and reflux as it's harder to digest things.
1:13:16Really interestingly, a feature of digestion that actually links POTS and hypermobility together is that people feel really dizzy after they eat when they have POTS. And this because blood pools in your digestion away from your brain. So I will have people literally wear a little abdominal binder, like an ACE bandage around their waist when they're eating and the dizziness goes away.
1:13:37Gabrielle Lyon:that it i mean i i don't think i've ever heard that before but it makes sense is an individual hopeful for a full recovery or is this something that they live with always if you are not hopeful for a full recovery you're not going to recover in my opinion so absolutely i would say that like for myself for instance i took an antihistamine because i've got an airplane to come down here woohoo um other than that i go months without taking them i can eat every food except for pickles i can exercise in my way dr gabrielle and exactly but um absolutely and the i think the language around all this is that you can never these are mass cultivation syndrome pots are syndromes right they are not intended to necessarily be lifelong conditions is it something that people may have to manage yes do i have hope for almost every single person that they can live a life without having to think about it and kind of live a life that's really custom and cater to them?
1:14:37Absolutely. And because our mast cells and our nervous system are so related and because POTS is a condition of our nervous system, you must think like that. That is the number one difference between those who heal and those who don't is they believe they can heal. I couldn't agree more.
1:14:57Gabrielle Lyon:I typically, you know, when we see patients, it's if those patients believe, and it does sound, I don't want to say woo-woo, but there is something like that. But there is something in the inherent belief of a person who gets better versus a patient who doesn't. this is the what makes these conditions so unique is that they are nervous system related disorder so it's it is directly responsible for the symptoms you have now how do I look at someone and say you have to find a way to not react to these symptoms because I'd say half of the symptoms we see are from the actual reaction itself and then half are from how our mental state reacts to those like you must find a way so story about myself is that after that chiropractic incident um i the insomnia was so profound i could not move my head an inch and i more importantly could not sit up so i was still seeing clients and i would prop myself up against the wall and i'm like do you want to see me like this or you want to wait three weeks and they're like no no i'll take you like this it's fine i'm like i'm just going to keep seeing i'm going to a talk in the city oh my god the uber to that talk i wore a neck brace a back brace i held on basically any movement was triggering my heart rate to go up really high is that what someone with pots would experience yes some with pots and uh upper cervical instability combined basically how long did it take you to get diagnosed so with um i i ran a genetic test for hypermobile ehlers-danlos syndrome and so yourself you can do yeah you can order them yourself online but i had i had annd and md review them so pots but i'm well i guess what i'm getting at is that's very forward thinking i had to figure a lot of it out myself it's hard it's true so mcas my serum histamine serum trip tastes were exceptionally high so that and that was um with a functional medicine doctor and that was that was like four years ago so that was the first hint and they ran that and that really helped me to understand the connection um pots and pots when i was in the er and the doctor was didn't even have to do a tilt table test he was like stand up again sit down again and and i said i have no i'm just telling you my heart rate is normally very low my blood pressure is normally very low and i'm telling you that because this is abnormal and that's really important when people go because often doctors will say you have high blood pressure that's what's going on here you have high heart rate and i was like i need you to know this is atypical but the doctor was like stand up sit down and i and he was like okay you need to look into pots and you need to see someone for pots um and you went to the cardiologist um i went to an interventional cardiologist who is someone who can diagnose pots did the tilt table test and got that diagnosis and then i i ran the genetic testing and had it reviewed by annd for ehlers-danlos syndrome and all along the way was trying to figure this all out because i'm telling you it was me a neck brace and read it and i was like why leave chiropractor can't walk like what i was like did he did he sever something like what it was so frightening the anxiety was so excruciating the symptoms were so intense all the time and i just i remember i had to literally it's so embarrassing i don't care but i had it's like i don't i just you know you know me i'll literally say anything but yes i would i had to lift myself up by my arms and push myself onto a computer chair to go to the bathroom because i if i put my feet on the ground my heart rate was 160 and that i'm like i don't want to do a three hour episode now where i feel sick for three hours like i'm going to throw up and dizzy and fainting and all of this so i'm like i would just lift myself up as long as my feet didn't touch the ground wheel myself to the bathroom and i remember there was one time i was in my neck brace looking in the mirror just made it to the bathroom and i just said you know what michelle i just i don't think you're gonna make it out of this and then some other part of me was like you better never say that again because if your nervous system and your limbic system believe that you're not going to heal you truly this is one of the only conditions where it is tangible that you won't heal so you have to find that i don't know that dog and you got to find that dr gabrielle line and you you got to find that shame in you and you have to find a way to believe you can heal and you know I had a very serious conversation with a client the other day who um she's bed bound with symptoms and um she was talking about her health history she was talking about the different co-infections she had and I said I love you so much and I just heard you say I felt good for a couple days but it always happened like that and it's not going to happen again and I said you can't even say that out loud I said your body is listening to you don't even think it don't even say it it's that precious and that important the mindset the resilience piece which you you've changed my life in so many ways in that department too I mean everyone's lives but personally too like you have to find that dog in you I don't know what to say you have to find it well Michelle Shapiro I'm so grateful that you came from is it New Jersey now it's so hurtful I'm Queens New York City okay I I just didn't know if we're calling it a British or New York.
1:19:57Gabrielle Lyon:But you are a wealth of information. And just, again, for those of you guys who don't know Michelle Shapiro, watch for her. She is a superstar. I have been telling her this and telling everybody I know for a really long time. And I believe that you are the person to watch. Thank you. You are the person I watch. And that we all watch. Thank you. I love you so much. You're really good at taking compliments, but that's okay. Michelle Shapiro thank you again for really getting in to the dark and dirty and shedding some light on MCAS, POTS, Ehlers-Danlos you know you've been through a lot and I would say that those individuals are the best providers.
1:20:44Absolutely yeah the word you use is right shedding the light on it because the light the information is the tool here the knowledge is the tool and the resilience is the tool i could talk about antihistamines a low histamine diet but you have to shine the light on yourself and i'm telling anyone who's listening who's dealing with i don't care how far those symptoms are there's always a way back from them i have more hope for this community than i've ever had in my entire life well said well said my friend i love
1:21:15Gabrielle Lyon:you so much. Thank you. Thanks for tuning in to another episode of the Dr. Gabrielle Lyons show. Remember, healing is possible. It's about improving your baseline, regaining function, and cultivating resilience. When equipped with education and the right approach, these conditions don't have to define your life. If today's episode resonated with you, Please share it with someone who needs to hear it. And don't forget to subscribe and leave a review. It helps us reach more people who need answers and hope. Until next time, friends, stay strong, stay informed, and remember, you are in control of your own health.
From the publisher
Mysterious symptoms. Confusing diagnoses. Years of being dismissed.
In this episode, Michelle Shapiro joins me to unpack the often misunderstood and overlooked world of mast cell activation syndrome (MCAS), histamine intolerance, postural orthostatic tachycardia syndrome (POTS), and hypermobility conditions.
Drawing from her own health journey and experience with thousands of clients, Michelle unpacks why conventional medicine often overlooks these complex, overlapping conditions—and how a root-cause, systems-based approach can lead to real healing. From nervous system regulation to low-histamine nutrition, this episode is a must-listen for anyone struggling with unexplained chronic symptoms.
You’ll learn:
- What MCAS is and why so many people are misdiagnosed
- The link between MCAS, POTS, and connective tissue disorders
- How nervous system regulation impacts immune reactivity
- Which foods trigger histamine flares and how to build a low histamine diet
- The surprising connection between hormones and histamine
- Why building muscle is critical for recovery from MCAS, POTS, and hypermobility
Whether you’re a clinician or someone living with these symptoms, this conversation offers insight, hope, and a roadmap forward.
Who is Michelle Shapiro?
Michelle Shapiro, RD is a functional/ integrative Registered Dietitian who has helped over 3,000 clients transform their health over the past 11 years. As the founder of an NYC-based virtual private practice, Michelle leads a team of six expert nutritionists who specialize in complex cases including histamine issues, gut dysfunction, chronic anxiety, and weight concerns. She is the creator of the viral Histamine Essentials Webinar, which is available now on replay, and the host of the top-rated podcast Quiet the Diet, where she breaks down the science behind chronic illness in a way that actually makes sense and makes you feel seen. Michelle is the go-to expert for people who have tried everything and are ready for a real plan.
This episode is brought to you by:
- OneSkin - Get 15% off with the code DRLYON – https://www.oneskin.co
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Find Michelle Shapiro at:
- Instagram - https://www.instagram.com/michelleshapirord
- Histamine Webinar Replay - https://michelleshapirord.com/histamine-webinar
- Apply to work with Michelle’s team: https://airtable.com/appzFCkAqbbL4J2Qu/pagw0ynsqYbBzMjes/form
Find Me At:
- Instagram:@drgabriellelyon
- TikTok: @drgabriellelyon
- Facebook: facebook.com/doctorgabriellelyon
- YouTube: youtube.com/@DrGabrielleLyon
- X (Twitter): x.com/drgabriellelyon
- Apply to become a patient – https://drgabriellelyon.com/new-patient-inquiry/
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- Get my book – https://drgabriellelyon.com/forever-strong/
Timestamps:
00:00 – Introduction: Dismissed symptoms and hidden syndromes
01:43 – What is mast cell activation syndrome (MCAS)?
03:33 – Why histamine is the “loudest” chemical messenger
06:39 – MCAS symptoms: from flushing to anxiety
08:22 – Root causes: mold, toxins, and the “bucket” theory
11:15 – Diagnosing MCAS: blood, urine, and biopsy challenges
15:11 – Food patterns: how "healthy" foods trigger MCAS
16:53 – MCAS vs histamine intolerance: what’s the difference?
25:06 – High-histamine foods: what to avoid (and why)
27:37 – Nervous system & immune system: the feedback...
