7 snacks for a longer & healthier life | Prof Sarah Berry

19 Feb 2026 · 1 h 1 min · 21 chapters

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In short

Snacking and how to choose snacks for a longer, healthier life. Episode argues snacking isn’t inherently bad; what matters is snack quality, timing (especially avoiding late-night snacking after 9pm), and overall eating pattern consistency.

Guest

Prof Sarah Berry, Zoe’s Chief Scientist and Professor in Nutrition at King’s College London. Leads/uses Zoe large-scale snacking research; also draws on clinical trial and food-processing expertise.

Key claims

  • In the UK/US, ~95% of people snack daily; snacks contribute ~25% of energy (about a “fourth meal”).
  • Frequency isn’t the main issue: multiple snacks are fine if they’re healthy.
  • Timing is crucial: snacking after 9pm (about 30% of snackers) links to worse outcomes (higher belly fat, inflammation, cholesterol), even with healthy snacks.
  • Most snack intake is from unhealthy, heavily processed foods (~75%); many people with healthy main meals still have unhealthy snacks (~40%).
  • “Health halos” (e.g., “high protein/high fibre” claims) can mislead; look for low sugar/salt and higher fibre, and consider processing.

Notable examples

  • Poor snacks: corner-store items, Starbucks pastries, crisps, and “protein” snack sticks high in saturated fat/salt.
  • Better snacks (7 listed): apple (whole), chickpeas/garbanzo beans, nuts, plain/unsweetened Greek or natural yoghurt, plain popcorn (not toffee), avocado, plus a final item not fully shown in the transcript.

Written by AI. May contain mistakes. Listen to the episode to check what was said.

Chapters

Tap a time to open that second in VO

Common Misconceptions About Snacking

1:07 to 3:28

Discover the truths behind common beliefs about snacking.

“Sarah, thank you so much for joining me today.”

Impact of Snacking on Health

3:28 to 6:16

Understand how the timing and quality of snacks affect health outcomes.

“A quarter of like all the energy I get from my food comes from snacking.”

Snacking Habits in Different Cultures

6:16 to 11:58

Explore differences in snacking habits across cultures and their implications.

“the timing of when people were having those snacks was important.”

Why Do We Snack?

12:09 to 14:00

Examine the reasons behind our snacking habits and their timing.

“So firstly, there's why do people snack?”

The Importance of Snack Timing

14:00 to 15:00

Discover how timing influences fullness and snacking effectiveness.

“your feelings of fullness will be lower having that snack later in the day compared to earlier in the day.”

Choosing Healthy Snacks

15:00 to 18:00

Learn about the nutritional aspects of healthy snacks and their impact on energy levels.

“That snack that you have mid-morning keeps you less full if it's late afternoon, for example, and you metabolize it a little bit differently.”

Identifying Poor Quality Snacks

18:00 to 21:00

Understand how to spot unhealthy snacks and the implications of processed foods.

“to have a more stable blood sugar you're going to be more alert more energetic and therefore you're not going to over consume calories in a way that your body doesn't need them just because you're on this roller coaster.”

ZOE's Processing Food Score Explained

21:00 to 24:40

Explore the ZOE processing score and how it evaluates food healthiness.

“that's got a decent amount of fiber in ideally you want to see can you actually even recognize the food it came from.”

Understanding Sugar and Whole Foods

24:40 to 28:00

Grasp the complex relationship between sugar, whole foods, and overall health.

“You'll consume that snack a lot more quickly.”

Cereal Bars and Health Halos

28:03 to 33:34

Learn how to evaluate cereal bars for health benefits and potential pitfalls.

“if you want that afternoon cake and the rest of your diet is healthy have it enjoy it just don't eat it all day long.”
Show all 21 chapters

The Benefits of Snacking on Apples

33:34 to 36:30

Discover why whole apples are a great snack choice and their health benefits.

“Well, I think you've come prepared with seven top snacks for supporting health.”

Chickpeas: The Versatile Legume

36:30 to 38:50

Explore the health advantages of incorporating chickpeas into your diet.

“Now it might be slightly more difficult to get on the go, but there's lots of different ways you can eat chickpeas.”

Nuts: A Nutritional Powerhouse

38:50 to 42:06

Understand how nuts can improve health and aid in weight management.

“And again, I know we've done a podcast talking all about the health benefits of nuts.”

The Power of Snacking for Health

42:06 to 42:26

Learn how effective snacking can significantly enhance your health.

“Today we've been learning the true power of snacking and how getting it right can significantly improve your health.”

Yogurt as a Healthy Snack Option

42:27 to 45:00

Discover why yogurt can be a nutritious snack choice when chosen carefully.

“This is a slightly unusual one because I don't think people would typically think of yoghurt as a snack.”

Popcorn: A Surprising Healthy Snack

45:02 to 47:21

Find out how popcorn can be a high-fiber snack if prepared correctly.

“I think about that as like I'm at the movies and I eat this enormous tub.”

Avocado: A Versatile Snack

47:23 to 48:28

Learn how avocado can be a nutritious, filling, and versatile snack.

“You can add some extra virgin olive oil.”

The Health Benefits of Dark Chocolate

48:29 to 50:25

Explore the health benefits of dark chocolate and its role in a healthy diet.

“We always think of snacks as in these prepackaged things or a bit of fruit, for example.”

Transforming Snack Habits for Better Health

50:26 to 53:34

Understand the health improvements from swapping unhealthy snacks for healthier options.

“you know, in front of the sofa after dinner, it's still not a good thing to do?”

Key Takeaways on Healthy Snacking

53:35 to 56:00

Revisit the main points about healthy snacking and its timing for better health.

“So my biggest takeaway is you don't have to give up snacks if you want to be healthy.”

Healthy Snack Insights

56:00 to 1:00:02

Discover the best times and types of snacks for a healthier lifestyle.

“packaged snacks are bad that carry a health halo.”
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Transcript

Automatic transcript. May contain errors.

0:00Sarah Berry:Welcome to Zoe Science and Nutrition, where world-leading scientists explain how their research can improve your health.

0:15Sarah Berry:How many meals do you eat today? Most of you, like me, probably have three. Would you be surprised if I told you there's a fourth meal that you eat every day that might be harming your health? On average, snacking accounts for around one quarter of our energy intake each day, the equivalent of an extra meal. But most of us give it little thought. We assume that if we eat healthy meals, we'll be fine. Snacks are often an afterthought or considered a dirty secret. But they shouldn't be, because snacking right might actually be the key to good health. Today, I'm joined by Professor Sarah Berry, Zoe's Chief Scientist and Professor in Nutrition at King's College London.

0:59Sarah Berry:She'll explain why snacks shouldn't be ignored and how they can be one of the most powerful tools in your mission to improve your overall health. By the end of today's episode, you'll have seven snacks chosen to support a longer and healthier life. Sarah, thank you so much for joining me today. Pleasure. I'm so excited to talk about one of my favourite topics. Which is, of course, snacking. So I have a bunch of questions from our listeners. So why don't we jump straight into it with the Q &A. Is snacking always bad for you? No. If a snack says natural on the label, does that mean it's healthy?

1:39No.

1:40Sarah Berry:Does it matter when you snack? Yes. Is chocolate always bad? No. Could I snack and make myself healthier? Yes. And finally, what's the biggest misconception that you've heard about snacking? The biggest misconception, in my opinion, about snacking is that having multiple snacks throughout the day is bad for your health, bad for your waist, bad for your weight. And that's not true? That's not true. Well, that is already good news. It does depend, Jonathan, on the snack. But we can dive into that. All right. Well, I imagine we're going to get into that. Now, I think like many of our listeners, honestly, I'm constantly thinking about a snack.

2:27Sarah Berry:And I'm also constantly feeling guilty about it because I can hear my grandmother saying, Jonathan, you'll ruin your dinner if you eat that. So in my mind, snacking is definitely like a bad thing. And I know you've been conducting some very large-scale research on snacking, Sarah. So I'm really excited to find out just how guilty I should feel. How common is snacking? So snacking is really common, particularly in the UK, in the US, but many, many countries rely on snacks for a huge proportion of their calories. In the UK and the US, we see that about 95 % of people have at least one snack a day.

3:08And by snack, What I mean is an eating event between a main meal. So I mean an eating event that isn't your breakfast, your lunch or your dinner. What we also see is that 25 % of our energy, that's a quarter of our calorie intake, comes from snacks in the UK and the US. And there's quite similar statistics in many other countries. That's enormous.

3:27Sarah Berry:That's crazy. A quarter of like all the energy I get from my food comes from snacking. On average. Obviously, it differs from one person to the other. So let's put in that context of actually how many calories. Let's assume again, the average person consuming 2 ,000 calories a day, that's 500 calories are coming from snacks. So it's almost like that's a fourth meal of the day. Yes, but often it's spread through multiple eating events, so multiple occasions where we're consuming these snacks. And what are the most common snacks in the US and the UK? So they differ from every country. So in the UK, the most common snacks are more sweet-based snacks.

4:07So cakes, you know, confectionery, biscuits or cookies and sweets. In the US, the main snack are potato chips, but also, again, cookies and candy.

4:19Sarah Berry:So I understand you've been doing this big Zoe snacking study. Can you talk a bit about what you were measuring in that beyond just whether people were snacking? Yeah, so snacking has actually not been looked at in, I think, as much detail as it should be, considering it accounts for a quarter of our calories. And there's actually not many studies out there looking at the impacts of different types of snacks and snacking per se on our health. So we have this very unique cohort at Zoe from our Zoe studies. And we've been able to track what snacks they're having, how many snacks they're having, how much energy comes from these snacks, but also the timing of the snacks.

4:59So we've been able to look at three really important features related to snacking. The quality, so how healthy those snacks are, the quantity and the timing of those snacks as well as the frequency. And we've been able to look at how do those different features related to snacking associate with various health outcomes. And the kind of health outcomes we've been looking at are health outcomes like blood pressure, like body weight, like your gut microbiome, your blood fat levels, your cholesterol levels and so many other health related factors.

5:34Sarah Berry:So I'd love to understand what you found and whether my grandmother is right and snacking is bad for you. So your grandmother is right, depending on what you are snacking on. And my mother brought me up also saying, Sarah, you mustn't keep snacking. You'll ruin your appetite. I think the really important thing first to mention is that we found that, and this might be obvious, that it's the quality, the type of snacks that really matter. But it's not actually the frequency of snacking that seems to be important. What we found is that even if people were having multiple snacks throughout the day, as long as they were healthy snacks, they did not have a negative impact on people's body weight.

6:13They didn't have a negative impact on all of these other health measures. There are a few nuances, as always. the timing of when people were having those snacks was important. And so what we found was that people who were snacking after nine o 'clock in the evening, and this actually accounted for about 30 % of snackers. So a lot of us are snacking late at night. Those people snacking after nine o 'clock in the evening did tend to have worst health outcomes. So they did tend to have higher fat around their belly. They did tend to have higher levels of inflammation, higher levels of cholesterol and so forth.

6:44and what was interesting is that even if those people were snacking on healthy snacks if they were snacking after nine o 'clock in the evening they still had these negative effects on health so what this showed us in in simple terms was that having multiple eating events so multiple snacks throughout the day if they're healthy has no negative impact and if you're stopping snacking by nine o 'clock in the evening, then they can still be a beneficial part of your overall diet.

7:14Sarah Berry:Now, Sarah, I'm not a nutritional scientist, but when you talked about the typical snacks that people are eating, and you mentioned the UK and the US, but I assume it's the same sort of across the Western world everywhere. They didn't sound like very healthy snacks. No. So again, in our own Zoe studies, we found that about 75 % of people's snack intake is from what we would consider unhealthy foods, so very heavily processed unhealthy foods. And I've actually done some research at King's College London where we investigated what the average snack profile was for people in the UK and also the US.

7:51So we leveraged these big food databases that we have, these national databases in the UK and the US, and we looked at what are the types of foods that people are getting their snacks from. And then we worked out the nutrient profile of this. And what we found was that on average, people's snack intake compared to their main meals tends to be higher in salt, tends to be higher in saturated fat, tends to be higher in sugar, and tends to be lower in protein and lower in fibre. But more importantly, the types of foods that they're coming from tends to be very unhealthy. They tend to be these very heavily processed, easy to access, easy to carry around kind of snacks.

8:31Sarah Berry:So the food that we're eating for our snacks tend to be very different from the types of food that we're eating the rest of the time? Or actually that's just the same as what these people are eating, you know, for their breakfast and lunch and dinner? So I love that question because this is something that we also looked at in our Zoe studies. And we looked at those people who have healthy main meals, are their snacks also healthy? and what we found was that 40 % of people that are having healthy main meals actually have really unhealthy snacks. So you're almost undoing some of that really good work that you're putting into your healthy meals and I think this is a problem that we have is that lots of people spend a lot of time thinking about okay, how can I make my lunch healthier?

9:14How can I make my dinner healthier? And yet if 40 % of those people are putting in all that effort for a really healthy lunch and dinner and then going and eating these really poor quality snacks you're sort of undoing some of that benefit.

9:28Sarah Berry:Honestly, I'm not sure I'm surprised by that because I think about, you know, my own experience, which is maybe you have a really good breakfast, that's easy, you have a good lunch, and then it's, you know, three o 'clock or four o 'clock in the afternoon and you go to, you know, some sort of coffee shop and then there's just that huge array of pastries and all these sorts of things. And, you know, you're a bit tired at this point in the day and all the rest of it. It all looks delicious. And so you have one. Maybe my comparison is I worked in France quite a lot. And even when they work in France, they all feel you have to stop and go and have a proper lunch.

10:05Sarah Berry:And I was really struck by that, having always grown up in the US and the UK, that you would never do that, right? You just sort of eat something at your desk, but there they would have like a proper lunch. And as part of that lunch, there would be a dessert. whereas I feel I would generally not have like a dessert as part of what I'm eating you know at my desk at lunchtime but therefore I deserve my treats you know at three or four in the afternoon and I probably have something enormous from Starbucks right which is you know compared to that French experience probably like five times bigger is that just me?

10:40Sarah Berry:For decades we've been led to believe that the brain is completely separate from our body. We thought low mood was just chemicals and that cognitive decline was an inevitable part of aging, a roll of the dice we had no control over. But at Zoe, we know the science says otherwise, and the truth is far more revealing. There's growing evidence to suggest that our brain doesn't act alone. It's in a constant partnership with our gut. If you've been feeling that afternoon fog or noticing that your memory isn't quite what it once was, it might not be age. It might just be your menu. Your diet is actually one of the most powerful ways that you can protect your brain's lifespan and improve your energy levels.

11:19Sarah Berry:So how do you use this science to get a 10-year head start on a healthier brain? We put everything you need into a new guide called Eating for Better Brain Health. Inside, you'll find five strategic, easy-to-implement tips from my Zoe co-founder, Professor Tim Spector, along with science-backed recipes designed to feed your gut and your mind. And the best part? It's much easier than you think to make a change. Longevity isn't all about luck. It's a strategy, and it starts with the next thing you put on your plate. Most people wait until they notice a decline to start caring about their brain. But longevity isn't luck.

11:54Sarah Berry:It's a choice you make before you need it. Don't leave your cognitive future to chance. Go to zoe.com slash brain health right now to claim your guide. That's zoe.com slash brain health, or click the link in the show notes.

12:08No, I mean, there's lots to unwrap there. So firstly, there's why do people snack? And there's been surveys that have looked at this. And the top two reasons are habit and this feeling of I need to be energised. And often the kind of snacks that we're having, actually, the worst things to increase our energy. And then shortly after that is it's a treat. Then you've got the timing of the snacks that, yes, a lot of people tend to have their snacks mid-afternoon to kind of beat that post-lunch slump, which actually if you're choosing the right type of lunch, you shouldn't actually be getting, or to kind of aimlessly, mindlessly, out of habit, munch away.

12:47And I know you say that you're guilty of doing this often with chocolate in the evening at 9, 10 o 'clock at night. And we know that eating later in the day is not great for us. And it's interesting you talked about your experience in France where they all stop for lunch and they have a big lunch and they have their sweetest part of their lunch. And this is one of the differences that we see in the Mediterranean countries compared to the UK and the US, that they tend to consume more of their calories early in the day. So actually, the most calorie dense meal in the Mediterranean countries is the lunch meal.

13:18And the least calorie dense is their dinner. And yet ours is the other way around. So you often hear Tim talk about, well, in Mediterranean countries, you know, they eat later in the evening. He's absolutely right. But they're eating less calories than we're eating for our evening meal. So that's just an aside point on the timing. But it really plays into snacks because the fact that the majority of snacks are consumed later in the day. Some people might have a small mid-morning snacks, but the majority are consumed actually after three o 'clock in the afternoon when we're less insulin sensitive, where also our hunger hormones are different.

13:53If you have a particular snack mid-morning versus later in the day, like in the afternoon or in the evening, evidence actually shows it will keep you less full, i.e. your feelings of fullness will be lower having that snack later in the day compared to earlier in the day. So if you are going to snack, I think our research and what else is out there shows very clearly that the quality of the snacks or the type of foods you're snacking on is really important. The timing of the snacks, try not to snack after nine o 'clock, is really important, more so than the frequency, how often you're snacking.

14:29Sarah Berry:And if I understood rightly, you're saying there's a couple of things about timing on snacks. So one is don't snack after dinner after 9 p.m., which you are right. I am massively guilty of. But the other thing I think I heard you say, Sarah, is that actually if I was going to have a snack, I'd be better off having that snack sort of between breakfast and lunch than I would be mid-afternoon. My body is going to be able to sort of metabolize it better, deal with it better if it was before lunch. Yes, absolutely. Now, we are talking quite a small difference in effect, but over a long period of time, you know, this builds up.

15:07That snack that you have mid-morning keeps you less full if it's late afternoon, for example, and you metabolize it a little bit differently. The other interesting point you made about your experience in France is that often, you know, the dessert is had as a dessert at the end of a main meal. So what you're being presented with is a large meal, but with lots of different kind of nutrients. you know fat protein fiber so even if you're having a sugary dessert after you're not going to have that really big sugar peak from that cake let's say or that cookie that you would have if you eat that cookie on its own later in the day as a single eating event as a single snack where i think it gets really interesting is there's some really interesting new data coming out about the consistency of the patterns of eating and so what i would caution against is people who like me are have a tendency to want to graze, to say, oh, well, I'm going to be really good tomorrow, and I'm only going to have my lunch and dinner.

16:05And then the next day, they then have their bad day. Well, this new evidence shows that consistency in the pattern of eating is actually really important. So if you are a grazer, you're better, as long as it's on healthy snacks, to continue that typical pattern. Our body likes predictability. So our body likes to know when to expect food. But if you're swapping and changing from having two meals one day, five meals, you know, snacks the next day, back to two meals or three meals, that kind of throws our body off sink. And so what I would say is try and be consistent. So if you are someone that typically has three meals, try and stick with that.

16:42What we want to be doing is eating food that keeps us full, that gives us a balanced blood sugar levels, for example, gives us balanced energy levels, balanced mood, balanced alertness. So this means selecting meals that have a decent amount of protein, fat, fiber in them, because we know that they keep you full for longer, they keep you more alert, and also can maintain a more stable mood and energy level. And so what we want to do is avoid foods, whether it's a snack or your breakfast, that give you big peaks in circulating blood sugar, and then these big crashes that you get. And we've done some research in our Zoe studies on this where you see that if you have for breakfast for example the kind of breakfast that I used to have and the kind of breakfast that you might used to have had where it might be low calorie but it's very high in refined carbohydrates might be white bread pastries that sort of thing and so what's happening is you get about two hours after this dip in circulating blood sugar and we know from our own research that actually causes you to have less energy be less alert eat your next meal even sooner but actually consume 320 calories more over the day because you're on this kind of roller coaster of events so changing to a breakfast that has healthy fats healthy proteins and fibrin it means it's keeping you fuller for longer you're going to have a more stable blood sugar you're going to be more alert more energetic and therefore you're not going to over consume calories in a way that your body doesn't need them just because you're on this roller coaster.

18:12Sarah Berry:Could you give me some examples of like what poor quality snacks are? Well, probably nearly everything that's on your corner store shelf, nearly everything that's probably in Starbucks or on a coffee shop shelf. It's actually really easy to get poor quality snacks. It's really difficult to get healthy snacks. And so the kind of snacks that typically people are consuming and again like i said you know 75 of the snacks that we consume are from these poor quality snacks very refined very heavily processed snacks such as cereal bars there's meat sticks that are out there in the uk we call these pepperonis these heavily processed red meat sticks and i know that these are being marketed a lot for example in the us as these high protein snack sticks they're so bad for you they're packed full of saturated fat packed full of salt they're not good snacks for you there are lots of potato chips or crisps as we call them in the uk that are bad for you there's some coming out now that are fried in beef tallow so with the whole movement in the us and the uk of demonizing seed oils which is what we used to use when we made crisps which actually can be healthy for us now there's lots of companies producing crisps that are fried in beef tallow, which is basically a very saturated fat and is really bad for us.

19:36Sarah Berry:That doesn't sound like a great picture. What is the key things that I'm sort of need to be aware of that are going to tell me that this snack is bad? So I've heard that like processed meat is bad. So that's maybe one. But what else am I looking for that is sort of like the red alert that this is not the snacks that I should be eating? That's a million dollar question. It's so difficult, Jonathan, to know whether that snack's bad. I'm a nutrition scientist with 25 years experience running clinical trials, looking at foods, looking at how processing changes the healthfulness of the food. when I go to a supermarket even by looking on the back of pack labelling yes it will tell me a little bit it will tell me if it's high in sugar it will tell me if it's high in salt tell me if it's high in saturated fat or low in fiber but there's so much more to what makes a food and in particular a snack healthy and given that the majority of the snacks that we consume come from processed foods it's very very difficult to work out is that food good for you is that snack healthy for you or is it unhealthy for you i know that's not the answer you want because i know people want to be able to go into their corner store and actually say okay sarah said look at this and that's going to tell me if it's healthy so to give a kind of general rule of thumb yes you don't want one that's too high in sugar ideally you want to have something that's got a decent amount of fiber in ideally you want to see can you actually even recognize the food it came from.

21:07Does it have a really long list of ingredients? Now, just because it has a long list of ingredients doesn't automatically mean it's bad for you. But typically, therefore, it's more likely to have lots of additives and emulsifiers that we know are bad for our gut microbiome. So they're kind of some really simple things that you can look at. At Zoe, we've developed a processing food score. And we developed this processing score also with snacking in mind, because we know it's so difficult to work out if those snacks have been processed in such a way that make them unhealthy for you. And we've looked at, okay, what are the features of processing that makes a food unhealthy for you?

21:43And processing impacts multiple features. Firstly, the nutrient composition of the food, so how much fibre, fat, protein, carbohydrate, but also those additives and emulsifiers. So firstly, our score considers those. How healthy are the nutrients that are in that processed food? How healthy or unhealthy are those additives or emulsifiers? Then we look at how palatable that food is. And this is a really big problem for snacks. So many snacks contain a magic mix of these nutrients, which when put together, make them very palatable, really, really tasty. So they kind of bypass our natural sort of break system in our brain that says, hey, Jonathan, you've had enough, don't eat any more.

22:23And this is a mix of nutrients that you don't typically find in nature. And so it's a mix of like salt and fat or sugar and fat. So let's take crisps, for example. They come from the humble potato. The potato, yes, is very high in starch. Put that potato in the form of crisps, you've suddenly got a magic, lovely taste of the oil, and then you've got the salt as well. It's like, you know, the advert for Pringles. Once you pop, you just can't stop. It's true. It's because it's got the salt, the fat, the carbohydrate. And so that's the other thing that we consider in our processing score, and it's really relevant to snacks because many snacks are designed to encourage us to hit that kind of bliss point in our brain and encourage us to over consume them.

23:07Sarah Berry:And Sarah, I've noticed that there are now a lot of alternatives to sort of potato based chips and crisps. So like lentil chips and vegetable based. Are these going to be much healthier? Sometimes they're healthier. So lentils, pulses, you know, kind of crisps, you know, made from these kind of beans and pulses. Yes, they're likely to be higher in protein. Yes, they're likely to be higher in fibre, but often they've also got lots of unhealthy components added to them. Often they might have a lot of salt added to them, other additives or a lot of sugar added to them. So I'd be a little bit cautious, and generally I'd be cautious with any snack that carries a health halo saying high protein, high fibre, because often, yes, they might be high in that single nutrient, but what else is in that snack?

23:55Sarah Berry:So it doesn't guarantee now that this is like a sort of safe and like low risk processed food? Absolutely not. And that's because the third reason that we know that processing can negatively impact our health that we also consider in our ZOE processing score is the structure of the food. Processing changes the structure of the food and you'll find that many snacks do not have the original food structure. Now we call this the food matrix. We've done a whole podcast on this for those that want to dive deeper into this. It's very difficult to measure that. You can't measure that on the back of pack labelling.

24:30So we use a surrogate measure in our score called energy intake rate, which is basically how fast do you consume that food. And the reason is because if you break down the structure of the food, you consume that food a lot faster. You'll consume that snack a lot more quickly. And so they're the three features that we look at in our processing score. And we know that many snacks tend to do very badly in these three features. They tend to be hyperpalatable. they tend to have a very high energy intake rate, i.e. be consumed very quickly. So you're consuming too many calories too quickly. And they also tend to have a poor nutrient profile.

25:07Sarah Berry:You're making really clear that it's like highly processed food can be really risky. Is it only whether or not a food is like a highly processed food that is going to determine whether, you know, it's unhealthy when I'm out and about? Absolutely not. And it's really important to say that just because the food's been processed doesn't mean it's unhealthy. There's many processed foods that can be healthy for us, particularly whole grain processed foods. We're really deficient in fibre in most countries, particularly in the UK and the US. 95 % of us don't get enough fibre. Whole grains are a really important source.

Read the full transcript

25:41Even if they are processed whole grains, the evidence still shows that they can be healthy for us.

25:48Sarah Berry:And so does that mean that if I have something that is high in sugar, I still need to worry about it, even if it's not got all sorts of weird things on the ingredient that I didn't know? I mean, is that still, you know, that's definitely how I was sort of brought up. If we're talking about pure sugar, table sugar, yeah, you should worry about it. It's going to cause these big sugar peaks, these big sugar dips. It's associated with inflammation, hunger, excess calorie consumption. not many of us just eat table sugar if you're talking about whole foods that are high in sugar dried fruit other foods i absolutely would not worry about that and actually we're seeing a little bit of a concerning trend amongst some influences out there and on social media actually demonizing food because of the sugar content we know that if you're eating that fruit as a whole food you tend to absorb that sugar more slowly into your circulation and whole foods packed with so many other amazing chemicals like polyphenols, which are these wonderful bioactive chemicals that act on anti-inflammatory pathways and antioxidant pathways and so forth.

26:58And so you've got to think of the food as a whole. So if you were to take a fruit or a piece of dried fruit and think, oh, it's got this amount of sugar, I can't eat it. No, that's not the right way to look at it. Think about how you're going to digest that fruit, which will be slowly, how you're going to eat it, which will be slowly. but also think about what are all the other wonderful chemicals and nutrients that are in that fruit.

27:18Sarah Berry:What about all these sort of pastries and cakes? So I think wherever you're getting that cake from, whether it's from a cake that you've made at home, so you know the ingredients, or a cake that's been processed in such a way that it can sit on a supermarket shelf for months, either way, yes, it's going to be low in fibre, low in protein, high in unhealthy nutrients like sugar. yes the one that you're getting from your grocery store is going to be worse for you probably because it's also got these other chemicals added to it but just because something like that cake is not processed i is homemade doesn't mean that it's automatically better for us but jonathan you know we all need to eat for pleasure we need to get the joy in the food that we're having if you want that afternoon cake and the rest of your diet is healthy have it enjoy it just don't eat it all day long.

28:11Sarah Berry:I love it. I'm still thinking through this idea that there's like nothing in the corner store that you can eat. What about all the cereal bars? There's been this explosion since I was a kid and a lot of them look really healthy, right? And they have normally tons of labels on them telling me that they're high in protein or whatever. Are they, you know, rare example of the good snacks that you were talking about to me earlier? I would say beware of two things when it comes to cereal bars. Firstly, that not all cereal bars are created equally. The difference in the health effects of one cereal bar versus another is absolutely huge.

28:53The other thing I'd beware of is health halos. So cereal bars are particularly susceptible to this where you have a cereal bar that says high protein, high fiber. Now, it could be full of absolute rubbish, but just because it meets that protein target or that fiber target, it can still say high protein, high fiber. And so this is what we consider like a health halo. Doesn't mean just because it has that claim that it is bad for you, but I would say be a little bit cautious. So when you're looking at your cereal bar, again, I would look at how much added sugar is in it. And often this isn't in the form of actually sugar.

29:28It might be treacles that are put on top, you know, syrups, those kind of things.

29:32Sarah Berry:So when I turn it over on the back, will it just say sugar and that will make me realise that it's full of sugar or is it sort of hidden away? So there's two different parts of the label you can look at. One is the ingredients. So let's say it's an oat-based bar. It will tell you the proportion of the ingredients that come from oats, the proportion that's from sugar, you don't want your sugar to be up there at 20, 30 % of the bar, then I would start to worry. As well as the ingredients, you also have the nutrient information. This is a legal requirement for everything that's sold to have both the nutrients and the ingredients.

30:08The nutrient information will tell you how much fat is in it, how much carbohydrate in it, how much of that carbohydrate is sugar, how much fibres in it, and so forth. So if you do want to look at the label, and I do think it's really hard to interpret the labels in order to make a decision of whether that snack is healthy or not. I find it difficult because of the way foods have been processed. As a rule of thumb, you want something that is higher in fibre, something that's lower in sugar and lower in salt. A lot of these cereal bars, even though they're sweet, actually are packed with salt as well.

30:39And so I would be a little bit cautious about any of these bars that are high in sugar, low in fibre and high in salt. When you're looking at the ingredients as well, again, look at the ingredients in terms of what proportion comes from nuts, what proportion comes from seeds, what proportion comes from oats, you know, from these kind of whole food starting point. And then what's all these kind of added bits of syrups and powders that are put in?

31:04Sarah Berry:I understand that we actually wrote an article talking about all the different ways that you as a food company might hide the fact that sugar with all of these different ingredient names which ultimately really are sugar. Could you explain that to me Sarah. Yeah, so sugar is a kind of slightly complicated one. So there's sugar that we think of in the typical way we think about sugar, which is white sugar granules. At the end of the day, that is processed in our blood to what we call very simple sugars, in particular glucose. And we know that big elevations in glucose, and particularly the dips, may be detrimental to our health.

31:43And there's lots of other forms of sugars that are then processed into these simple sugars. So you've got syrups like nectar syrup, you've got honeys, or often if it ends in Ose, O-S-E, then that's an indication that it's a sugar because we know sugar, for example, is called sucrose. Fructose is another kind of sugar. So most sugars end in Ose, glucose, fructose, sucrose.

32:11Sarah Berry:And so that means that I could have in my ingredient list, as I understand it, sugar actually appearing like multiple times, but with different names? Absolutely. So you can have multiple sources of different types of sugars in the ingredient list. On the nutrient profile, on the back of pack of your labelling, it will list it just as sugar. It will come under carbohydrate and then under sugar. But in your ingredient list, yes, you could have five or six different types of sugar sources. So if I really want to know how much sugar is in this, I really need to look at that ingredient list where it says sort of carbohydrates of which sugar is, you know, 25 % or something.

32:48Sarah Berry:But whereas when I look at the ingredients, it can be really hidden to me because it's sort of broken up into all these different things that are sort of like make it impossible for me to tell that actually it's like half sugar. Absolutely. And having some sugar in there is absolutely fine. You know, our bodies are so clever. We've evolved to be able to process fat, protein, fibre and carbohydrate, of which sugar is one of them. So don't be too worried if there's sugar. I think the point here is that lots of snacks tend to be high in sugar. And it tends to not be obvious unless you're looking at the backpack labelling.

33:22Sarah Berry:Brilliant. And we'll put the link in the show notes to that article because when I read it, I was amazed. I think there were like 42 different names for sugar that food manufacturers can use, which is quite extraordinary. Well, I think you've come prepared with seven top snacks for supporting health. Is that right? I have. So having told me about all these things I should avoid, I'd like to understand what I could snack on instead. So why don't you start with the first one? So there's lots that you can snack on. I want to give you a really simple, old fashioned, accessible and cheap snack. An apple, the humble apple.

34:00That saying that I was brought up with, an apple a day keeps the doctor away, I should have paid more attention to. and the reason is firstly it's so easy just to have one in your bag they're long lasting they're healthy for you because assuming you you keep the skin on they're full of fiber they're full of other healthy nutrients nutrients that we would consider antioxidant nutrients like vitamin c for example they're also packed full of polyphenols so when we think about polyphenols which are these colored pigments that are found in fruits that we know have these bioactive properties that we know very beneficial for our gut microbiome but also wider for our health because of their anti-inflammatory effects.

34:41We typically think of berries when we think of polyphenols but actually apples have an enormous amount of polyphenols as well and when you eat a whole apple despite the fact that yes it's got lots of sugar in it you eat it in such a way because of the texture of the apple because it's typically very crunchy that you eat it quite slowly as well so you also get a really balanced blood sugar response and there's been studies looking at this that show also that you don't get that dip despite the sugar load that you would if you were to have apple juice, for example. So I think apple is a great one and it ticks all the boxes for me.

35:15And you know something I'm really passionate about is making sure what we recommend is affordable for everyone and accessible. It's one of the cheapest fruits that's out there.

35:23Sarah Berry:It's really interesting you say that eating it as the whole apple is the key. I can't have it as like apple juice or a smoothie. I have to actually eat the apple. So ideally, you would eat the apple. There has been research comparing the health effects of the whole apple versus apple smoothie versus apple juice. So if you consume a whole apple versus apple smoothie, they're nutritionally identical. So same fiber, same everything. What you see is the speed at which you eat them is really, really different. So you will eat the apple puree about four times more quickly than you will the whole apple.

36:00what does that mean it means that you get these bigger peaks but more importantly these big dips in circulating blood glucose blood sugar that cause you to be more hungry later on and we know that eating a whole apple versus apple puree or smoothied apple actually keeps you a lot fuller for a lot longer strip out all the fiber then you've got apple juice well that's like having kind of pure sugar that might have a few of the other benefits like some vitamin c in but absolutely go for the whole apple.

36:29Sarah Berry:So I had an apple yesterday. So today I would like something else. So number two is chickpea. Now it might be slightly more difficult to get on the go, but there's lots of different ways you can eat chickpeas. And the reason I recommend this is because we're not eating as a nation and it's the same in the US and many countries, enough legumes, enough pulses, enough beans, which is basically what chickpeas are. And I think there are garbanzo beans for our US listeners. Okay, garbanzo beans. Thank you. I've learned something new today. And they're so healthy for us. They're high in protein, they're really high in fiber.

37:05You know, they are such an important source of slow carbohydrates as well. And, you know, there's good evidence to show the more we can incorporate these kind of beans and legumes into our diet, the healthier we are. You can have them lots of different ways. You can actually just have them straight out of the jar. Lots of people might not like that. I know many people that do munch on them out of a jar. The other thing you could do is you could try roasting them. So you could roast them with your favourite herbs or spices. A great way to make it even healthier because we know adding herbs and spices to your diet is really important in improving health.

37:41And again, we've got an entire podcast on this.

37:44Sarah Berry:So some people like paprika sprinkled on them or turmeric or something. And if you roast them, they last longer. You can put them in a jar. So it's something that, yes, you do need to pre-prepare them. So there is that downside. But if you make a big batch, then they should last for a reasonable amount of time and you can put them in a jar, carry them around with you. And I've seen people starting to sell roasted chickpeas. Would that still be good? Depends. So there are some on the market that are in quite a pure form that have very little in terms of unhealthy additives or chemicals added to them.

38:19They might have some nice added herbs and spices or a very small amount of salt, in which case, yes, you're still getting all the benefits. But I have seen some there that actually have a lot of the structure of the chickpea broken down because they might be converted into some sort of chickpea style crisp or chip. and they often have lots of added chemicals as well. So for the shop-bought ones, I would look at the back-of-pack labelling.

38:46Sarah Berry:What's number three? Number three is nuts. I'm a huge fan of nuts. And again, I know we've done a podcast talking all about the health benefits of nuts. Nuts is fantastic. It's like a powerhouse of nutrition. Nuts are packed of fibre, protein, heart-healthy oils, and loads and loads of micronutrients, vitamins and minerals and polyphenols. they're so good for us and they're really easy to carry around as well and because of the balance of the nutrients the fact that they're high in protein the fact that they're high in fiber and the fact that they're high in healthy fats they also keep you fuller for longer so they're not giving you that kind of quick sugar fix and dip so you will stay fuller for longer and i've actually done a study looking at giving people nuts as their snacks versus people having typical us uk snacks I asked people to either consume 20 % of their energy from typical UK US snacks that we designed and actually provided for them or 20 % of their energy from almond nuts.

39:49We said keep everything else in your diet the same. Don't change anything else. This is all you've got to do. Just change your snacks. We monitored them over six weeks. At the end of the six weeks, those people who were consuming almond nuts instead of the typical UK-US snacks had improvements in blood cholesterol, in blood vessel function, in so many different health parameters that actually equated to a 30 % reduction in cardiovascular disease risk just from changing their typical snacks to nuts.

40:16Sarah Berry:So firstly, that seems like a mad level of improvement just to make one swap. Aren't nuts really high in fat? So if you do that, won't you end up putting on weight? No. Despite nuts being very high in fat, people who are nut consumers do not have greater weight compared to people who are non-nut consumers. Randomised control trials, so clinical trials, also show if you increase people's nut intake, they do not increase their weight. The reason is, is because of the structure of the nuts. And I've done lots of trials on this. So the structure of the nuts, this food matrix that I talked about earlier, is very protective in terms of when you consume a whole nut, what happens is, is that actually about 30 % of the calories are excreted.

41:04And so you're actually not absorbing all of the calories from that nut. and that's because nuts, like all plant foods, have hundreds and hundreds and hundreds of cells. The cells are surrounded by a cell wall, which is what fibre is. This cell wall, particularly in nuts, is very rigid, is very difficult to be broken down. So the point at which you swallow a nut, the particles pass through your gastrointestinal tract and some of the fat is released from these cells. But actually a lot remains intact. It remains intact, it reaches your gut, So 30 % of the calories are excreted, but more importantly, you're providing a feast for your gut microbiome as well.

41:43Sarah Berry:Is the microbiome part of this story important in your view? We think so. We've again done studies looking at microbiome following nut consumption. And also at Zoe, with our Zoe studies, we see a really strong signal in those that are consuming nuts. We see an increase in many of the beneficial bacteria that we're particularly focused on at Zoe. So good food for us and good food for our bugs. Absolutely. Today we've been learning the true power of snacking and how getting it right can significantly improve your health. So if you have anyone in your life who likes a snack, why not share this episode with them and spread the word about how they can improve their health through what they eat.

42:25Sarah Berry:All right, what's number four, Sarah? Number four is yoghurt. This is a slightly unusual one because I don't think people would typically think of yoghurt as a snack. It depends on the type of yogurt, but if you're consuming the right type of yogurt, and by right type I mean a yogurt that is in its purest form. So I mean like Greek yogurt that doesn't have added sugar, sweeteners, fruit flavorings added to it, or another kind of natural yogurt. That's so healthy for you. It's high in protein. It's full of gut-loving bacteria as well because it's a fermented dairy, so we know that that's also good for our gut microbiome.

43:05What I would say is be very cautious of the kind of yogurts that have the added sweeteners, have a lot of sugar added to them or have these fruit flavorings because they tend to be a lot less healthy for us.

43:18Sarah Berry:And what about low-fat versions of yogurts? So what do I need to have there for this to be healthy? if you're going for low fat you need to go for low fat again of the pure form so low fat greek yogurt low fat natural yogurt what i'd be really cautious about is a lot of the yogurts that are branded as low fat in order to make up for the fact that you don't have that lovely creamy texture that the fat brings to the yogurt they often have lots of things added in that we know might impact our gut microbiome in a negative way or they might be a lot higher in sugar. One of the reasons that many yogurts are marketed as low fat and have had the fat removed is because firstly this fear about calories and fat being high in calories and you know this is something that we talk about often that we need to move away from thinking about the quantity of calories and think about the quality of calories.

44:13The other reason is is because dairy fat is typically high in saturated fat. Saturated fat generally we know is really bad for us, particularly bad for our heart health. But what we now know is that fermented dairy, so this is yogurt and this is cheese, something changes in that kind of structure of that food that seems to actually negate, so prevent the saturated fat that's in that yogurt or that cheese from actually having a negative impact on our health. And so that's why I would say that yogurt is a great one, whether it's full fat or low fat, as long as it's not got any of these additives, these sugars and these kind of imitation fruits added to them.

44:54I think it's a great option. But I think high fat is just as healthy as well.

45:00Sarah Berry:Brilliant. What is number five? So number five is popcorn. This might surprise lots of people. You're surprising me. Popcorn. I think about that as like I'm at the movies and I eat this enormous tub. That's my healthy snack, is it? It can be. So just like yogurt, it depends on what type of popcorn you're having. So let's assume it's a popcorn that you're making at home or even in one of those bags that you can buy that you put in your microwave. Often those pretend to be quite low in salt. If you're making them at home, you have the option of what you want to add into them. So pure popcorn is a great snack because it's actually really quite high in fibre, surprisingly high in fibre.

45:41So if you're making at home as well, it's a great snack that can be made very, very quickly. It only takes three, four minutes. It can last for a reasonable amount of time, provided it's sealed. I mean, it can go a bit soggy, but you also have control over what you add to it. And you can actually make it an even healthier snack. So just like we talked about with the chickpeas, you can add herbs or spices to it. There's some wonderful recipes out there for popcorn with different spices and cinnamon if you want a sweet one, or you can do savoury. So you're really kind of boosting the fact that you're having a high fibre snack with having the benefits of all of these spices.

46:17Where I'd be cautious, again, the ones that are often pre-made that you get in the supermarkets or what you get also when you go to the cinema, like the toffee ones. Absolutely not. That is not a healthy snack. It's packed with sugar and goodness knows what else. some of the salt and sweet ones again that you see in the supermarket they do have quite a lot of salt and quite a lot of sugar it's up to individuals to look at the back of pack have a look you know you should be aiming for less than about one and a half grams of salt per 100 grams of popcorn there are some brands out there that have salt at that low level if possible i would try and make it at home what's number six so number six is a slightly left field because i don't think we would typically think of this as a snack and this is avocado and the reason i've chosen avocado is because i think it is an incredible fruit to consume it's so high in fiber it's so high in heart healthy oils and you can actually carry it around if you do have it in you know a plastic container or something it will keep you full for long as well because of the fiber because of the heart-healthy fats in it.

47:26And again, you can spice it up a bit. You can add some extra virgin olive oil. It's going to make it even healthier. I like it with a little pinch of salt, not too much salt, but a little pinch of salt and some extra virgin olive oil, balsamic vinegar, or you can put your herbs and spices on it. So you can change it to each day, you know, to be a really versatile snack.

47:44Sarah Berry:This is one that you've really sold me on. I never would have thought about doing this before, Zoe, but now if I'm at home and I'm suddenly hungry, I have got in my mind that like, oh, I could open an avocado. I can smother it in extra virgin olive oil, put like some salt and pepper, some spice on top of it. I mean, that's like 60 seconds I've described. And it's delicious and feels incredibly indulgent, I guess, because of all the fats that are there in it. Oh, absolutely. You know, fat is what carries the flavor of food. Fat is what gives the creamy and that lovely mouthfeel of food. And so something like an avocado, I think, is a perfect example of where you can have your cake and eat it because you've got that beautiful flavour, you've got that beautiful texture, but you're getting all the fibre and it's healthy fats as well.

48:27I also think avocado is a great example of how we can think outside the box. We always think of snacks as in these prepackaged things or a bit of fruit, for example. Actually think about all other ways that you can get snacks in your diet. Have you got leftovers from the night before from your meal? A snack is just an eating event between a main meal. So think about things that you wouldn't typically think about. Boiled egg. for example. These are all great examples of thinking outside of that traditional snack kind of criteria.

48:59Sarah Berry:All right, we are on to the last one in the list. What have you got for us, Sarah? So number seven, Jonathan, you are going to love. It's chocolate. Oh, I do love chocolate. Again, it depends on the type of chocolate. Dark chocolate, so chocolate's got at least 70 % solids we know can be really good for our health. We know that it's packed full of these magic chemicals called polyphenols. And again, we've done a whole episode on this at Zoe. And these have really beneficial effects on how our blood vessels function. It varies from one person to the other. Some get greater benefits than other people.

49:37So it can affect everything from our heart health to our brain health. Now, I wouldn't say, therefore, you should go and consume endless amounts of chocolate. But if you're buying this dark chocolate, you'll find that actually you tend to feel quite full and more satisfied from a dark chocolate than you would from a milk chocolate like Hershey's or dairy milk. And that's because in Hershey's and dairy milk or these other milk chocolates, they tend to also have a lot of sugar added to them. And so it's a lot more easy to over consume those. And they don't have the added benefits of having the right amount of these chocolate solids that give all of these heart health and brain health benefits.

50:17Sarah Berry:Bringing us back, I guess, to the start of the show, you're saying that although it could be a healthy snack as part of my diet, if I'm eating this at sort of nine or 10 or 11 o 'clock at night, you know, in front of the sofa after dinner, it's still not a good thing to do? Even though it's a healthy snack, I would still avoid snacking on any of these healthy snacks late into the evening. Now, nine isn't a hard cutoff, but it's a cutoff that our data shows after which it seems to be having a negative impact. You're eating out of tune with your natural body clock. Try not to snack after eight or nine in the evening.

50:58Sarah Berry:Thank you, Sarah, for bringing like these seven sort of magical snacks to replace what I've done before. I'd like to finish by just understanding what might happen if one of our listeners has been eating the way that you said three quarters of people, you know, even in the Zoey database are doing, which is their snacks are much lower quality than the rest of their meal. And they switch, they swap it out for like your seven, like what health benefits will they get and how quickly will they get them? So I think if you are a snacker, who's typically getting 20 to 25 % of your energy from snacks, and you're snacking on typical UK US snacks which are not very healthy and you swap to any of these seven it's not limited to these seven so any kind of healthy whole foods you will see quite immediate benefits you might see an immediate benefit that day from not having a high sugar snack that's causing a sugar crash for example that causes you to feel very hungry have a low mood have low energy you should start to generally feel better after a couple of weeks and this is something that we've looked at a lot at zoe is how quickly do people start to say oh i feel generally more energetic generally have better mood you should start to see an improvement in other health outcomes in two to four weeks and so again our own research that i've done at king shows this that you should start to see improvement in your blood lipids so your cholesterol levels you should start to see improvements maybe in blood pressure after four to six weeks in your glucose control and so forth so you should in the moment feel better either that day or certainly within a few weeks and then within weeks to months you will start to see a benefit in some of the clinical measures as well now it depends on your starting point it depends on how much energy you're getting from snacks it depends on when you're eating those snacks and it depends on how healthy those snacks that you're going on to eat.

52:59I think it's really important at this stage, Jonathan, to say I am not in this episode encouraging non-snackers to go and start snacking at all. What I'm saying is if you are a snacker and as long as you're not snacking late at night and you're snacking on healthy foods, then that's okay as part of a balanced diet. And actually empowering those people who are snackers to say, do you know what, just changing your snacks is one of the most simple, single dietary strategies that you can do tomorrow to improve your health.

53:34Sarah Berry:Thank you so much, Sarah. I'd like to just try and summarize. So my biggest takeaway is you don't have to give up snacks if you want to be healthy. There is such a thing as like a healthy snack. And even if you are someone who's having multiple snacks in the day that isn't necessarily bad for your health and something that you need to stop doing, despite what my wonderful grandmother said to me. And if I'm eating those healthy snacks, actually, that doesn't mean that I'm going to put on weight versus if I'd given up the snacking. So I think that's really surprising for many of us. However, three quarters of all the snacks that people are eating are unhealthy.

54:18Sarah Berry:and that for the vast majority of people, the quality of their snacks is much lower than the quality of their main meal. So although in theory you can eat healthy snacks, most people, like their diet is sort of getting pulled down by their snacks. And you said it's like higher in salt, higher in saturated fat, much more likely to be this sort of high-risk processed food, higher in sugar, lower in protein, lower in fiber. So it's sort of like all the bad stuff and none of the good stuff. So you do have to be really thoughtful about what you're eating as a snack. And it's very hard to find good snacks if you're just out and about, which is also a challenge.

54:57Sarah Berry:So it sort of requires some preparation. One thing that came through really strongly in your research, which is really new, is the timing of snacking looks like it's really important. And 30 % of snackers are eating after 9 p.m. in your research. and that had a bad impact on like their belly fat on their health so even if what you're eating is a healthy snack that timing does still matter watch out for like what the snacks claim because if the snack is claiming for you it's really healthy it's probably what you describe as a health halo and it's probably not real so if you've got this cereal bar and it says like high protein then you know you actually think that's almost a watch out for the ingredients and it's probably high risk processed food you know interestingly i think almost none of the seven snacks you describe you know it comes with a health halo funnily enough my apple just tends to just like have nothing on it or like a little sticker that you never know what it means so um they need to get better marketing yeah but i would like to cover it doesn't mean all of those packaged snacks are bad that carry a health halo.

56:06Sarah Berry:And as I'm thinking about when to eat, I think the other thing that I was struck by is you said, if I'm going to have these snacks, again, the evidence suggests that like a mid-morning snack is likely to be better than a mid-afternoon snack. I'm more likely to be able to cope with that. And that's particularly true, maybe if it's a bit of an indulgence. So if I'm going to have my cake or my pastry, I'd actually be better off doing that, you know, between breakfast and lunch than I would do in the middle of the afternoon. Yes, although the difference is quite small. So if you really like it in the afternoon, don't worry, just have it in the afternoon.

56:42Sarah Berry:I love it, Sarah. You're always the person I think of when I crack open the cake. And then you shared like these seven snacks. And just to summarize, started with the apple, which you said, you know, deserves its name for keeping the doctor away. The second which was really a surprise is chickpeas or garbanzo beans as they're known in the US. And this idea you could just take them straight from the jar, but actually like you can roast them with a bunch of spices and take it with you. And actually that you can do that. It's a bit like sort of your batch preparation. Third one, nuts. Despite all these fears we've had about how it's going to make you fat.

57:16Sarah Berry:Actually, they're like this magic rocket fuel for your microbiome. The next is yogurt, where you have to be really careful about getting a real yogurt rather than something which has been super processed and hidden. But if you can get a real yogurt, particularly a Greek-style yogurt because of the higher protein you were describing, that actually could be a great snack. And Jonathan, by real Greek-style or natural yogurt, I do mean the quite standard ones that you get in your grocery store or supermarket. I don't mean you've got to go to a farm where it's just all been churned. One of the funny things is often these are the cheapest yogurts I find.

57:53Because it's unadulterated. It's just simple yogurts. It's just come from milk that's been left out in simple terms. And it's yogurts that's come out of it. It's not how to go through all of these other processes and have all of these fancy ingredients added to them.

58:08Sarah Berry:That's brilliant. The next is popcorn. Also a huge surprise because I would have thought about that as being bad for you. But it needs to be without added sugar. it could have added salt but you need to take a look at that and make sure that level is not too high and then if you're making it home then you can add like herbs and spices and all this sort of fun stuff but you know again this feels like it's a treat but actually you're saying it's healthy the next is avocado which i know has a special place in your heart sarah with all of those healthy fats and i love this idea that potentially you could actually take that with you you know if you've already cut it open then that's something that you know you could take with you into work.

58:47Sarah Berry:You described it as just being this amazing powerhouse. And then last of all, I think most surprising for many people will be chocolate. Chocolate can be a healthy snack, but it needs to be dark chocolate. You said more than 70 % actually coming from chocolate and not from sugar. And then because of all of these amazing polyphenols and other things that you talk about, actually something so delicious could actually be good for you. absolutely but don't over consume the chocolate i love it and i think you know the thing that i'm always left with when i talk with you sarah is that ultimately food is meant to be enjoyed don't feel that you can never have like a cake or any of these sorts of things think about this within the construct of your entire diet and i love this idea that you therefore if you are eating a really healthy diet then absolutely it gives you this opportunity to you know have some cake have whatever these other things are, and you're saying, I'm going to be okay.

59:47Absolutely.

59:49Sarah Berry:As you can imagine, hosting this podcast, running Zoe, juggling family life, it all keeps me pretty busy. So I try as best I can to stay energized and show up well in all those parts of my life by fueling my body with the right food, by exercising, and by adding a scoop of Daily 30 to my meals every day. If you haven't heard of Daily 30 yet, it's the gut supplement designed by our gut health scientists here at Zoe. It's made of over 30 high-quality hand-picked plants, including seaweed, fungi, and different types of fiber. Better yet, it contains ingredients that support gut health, digestion, and energy, which is ideal for packed calendars and busy lives.

1:00:32Sarah Berry:Simply add one scoop a day to any meal for an extra boost of fiber and plant diversity. And because it tastes delicious on just about anything and adds a satisfying crunch, it quite quickly slots into your life becoming a daily healthy habit you'll always have time for. By the way, whenever we talk about Daily 30 as a good source of fiber we're required to say that it contains four grams of total fat per serving. Obviously, that's all amazing healthy fats from plants. So, order yours today at zoe.com slash daily 30. Thanks for listening and see you next time.

1:01:12you

From the publisher

Snacks make up a quarter of what most people eat. Yet most of us never question them.

In this episode, Professor Sarah Berry, ZOE’s Chief Scientist, explains why snacking is not the problem and how seven snack swaps can lower cholesterol, support gut health, and reduce heart disease risk.

Most snacks are high in sugar, salt, and saturated fat, and many carry “health” claims that hide this. Sarah breaks down how to spot this, explains what makes a good snack and why snack timing matters.

You’ll walk away with seven simple snack ideas that help improve cholesterol, blood sugar, and heart health in weeks.

If you’re a snacker, this may be the easiest place to improve your diet.

🌱 Try our science-backed and tasty wholefood supplement Daily 30+

Get our brand-new app and Gut Health Test designed by world-leading gut health and nutrition scientists to build healthy eating habits 👉 Join ZOE

Follow ZOE on Instagram.

Timecodes

00:00 Intro

03:31 95% of us snack every day

06:33 The 9pm rule that changes everything

12:43 Why late snacks keep you less full

16:33 The breakfast mistake that adds 320 calories

21:35 The ‘bliss point’ that makes snacks hard to stop

25:37 Should you worry about sugar?

29:32 How to actually read a snack label

33:45 Why sugar appears under 42 different names

35:30 The simple snack most people overlook

38:15 The protein-packed food we don’t eat enough of

41:26 The one swap that cut heart disease risk by 30%

43:22 Why this high-fat snack doesn’t cause weight gain

46:26 The fermented food that supports your gut

48:20 The creamy fruit that keeps you full

50:30 The sweet treat that may help your heart

52:55 How quickly you’ll feel the difference

55:35 Why most snacks quietly drag your diet down

56:32 Why timing may matter more than frequency

01:00:20 Can you snack and still stay healthy?

📚Books by our ZOE Scientists

The Food For Life Cookbook

Every Body Should Know This by Dr Federica Amati

Food For Life by Prof. Tim Spector

Ferment by Prof. Tim Spector

Free resources from ZOE

Eating for Better Brain Health: Your brain-gut blueprint

How to eat in 2026 - Discover ZOE’s 8 nutrition principles for long-term health

Live Healthier: Top 10 Tips From ZOE Science & Nutrition

Gut Guide - For a Healthier Microbiome in Weeks 

Better Breakfast Guide

Mentioned in today's episode

ZOE snacking study: What should you do?

The ZOE Big IF Study: What did we find?

Whole Fruits Versus 100% Fruit Juice, Nutrition Bulletin (2025)

What are added sugars, and where are they hidden?

Have feedback or a topic you'd like us to cover? Let us know here.

Episode transcripts are available here.

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