Dr. Sarah Berry

That's a whole other question. Great for losing, not for maintenance. Then you've got the alkaline diet. I mean, I don't understand that. Eat alkaline foods, but your stomach is acidic. So got no idea how that works. The blood type diet. I don't actually know what half of these diets do because I do not understand the physiological theory behind them. And so, do you know what though, Stephen?

That's a whole other question. Great for losing, not for maintenance. Then you've got the alkaline diet. I mean, I don't understand that. Eat alkaline foods, but your stomach is acidic. So got no idea how that works. The blood type diet. I don't actually know what half of these diets do because I do not understand the physiological theory behind them. And so, do you know what though, Stephen?

I think if it works for you as an individual, fine, do it. But if it works for you at the expense of the pleasure of food, at the expense of enjoying life to the fullness, that's what I think is a shame. Like time-restricted eating, I think there's great evidence around time-restricted eating.

I think if it works for you as an individual, fine, do it. But if it works for you at the expense of the pleasure of food, at the expense of enjoying life to the fullness, that's what I think is a shame. Like time-restricted eating, I think there's great evidence around time-restricted eating.

Now, much of it comes from very tightly metabolically controlled studies, you know, that are done in clinic where people, you know, eat within a five or six hour window. So they have their first meal at 10, their last meal at four in the evening. Reduces inflammation, reduces body weight, improves blood cholesterol, et cetera, et cetera, et cetera. I don't want to only eat six hours a day.

Now, much of it comes from very tightly metabolically controlled studies, you know, that are done in clinic where people, you know, eat within a five or six hour window. So they have their first meal at 10, their last meal at four in the evening. Reduces inflammation, reduces body weight, improves blood cholesterol, et cetera, et cetera, et cetera. I don't want to only eat six hours a day.

I want to have dinner with my family. I want to have dinner with my friends. I want to go to the pub in the evening, not every evening. I want to live life. So what can we do that takes that principle of that diet, but we still benefit from it? And this is what's great, again, about the research that we're doing at ZOE.

I want to have dinner with my family. I want to have dinner with my friends. I want to go to the pub in the evening, not every evening. I want to live life. So what can we do that takes that principle of that diet, but we still benefit from it? And this is what's great, again, about the research that we're doing at ZOE.

We've done this study called the Big If Study, the Big Intermittent Fasting Study, where 150,000 people sign up. And we said, look, we want to see if what we find in tightly controlled clinical studies plays out in the real world. Because we always have to think, how does all of this evidence play out in the real world? Does it matter?

We've done this study called the Big If Study, the Big Intermittent Fasting Study, where 150,000 people sign up. And we said, look, we want to see if what we find in tightly controlled clinical studies plays out in the real world. Because we always have to think, how does all of this evidence play out in the real world? Does it matter?

And we said, just limit your eating window, so the time from your first to your last meal, to 10 hours. So that means if you're having your first meal at 10 in the morning, you're having your last meal at 8 in the evening. That's correct, isn't it? Sure. That's quite doable for most people. I can have my breakfast at 10. I can finish my last meal at 8.

And we said, just limit your eating window, so the time from your first to your last meal, to 10 hours. So that means if you're having your first meal at 10 in the morning, you're having your last meal at 8 in the evening. That's correct, isn't it? Sure. That's quite doable for most people. I can have my breakfast at 10. I can finish my last meal at 8.

I mean, yeah, I do like munching on my chocolate late at night. I could probably still live a happy enough life doing that. And we found people could do it. We found as well that people who practiced it within two weeks, they felt better. They had better energy, better mood. You know, they were feeling a lot better. They also lost weight.

I mean, yeah, I do like munching on my chocolate late at night. I could probably still live a happy enough life doing that. And we found people could do it. We found as well that people who practiced it within two weeks, they felt better. They had better energy, better mood. You know, they were feeling a lot better. They also lost weight.

Many people wanted to do this because they wanted to lose weight. And we actually see from evidence that people practicing time-restricted eating, even if they're told not to change their calorie intake, just by limiting their eating window, on average, reduce their energy intake by about 300 calories on average.

Many people wanted to do this because they wanted to lose weight. And we actually see from evidence that people practicing time-restricted eating, even if they're told not to change their calorie intake, just by limiting their eating window, on average, reduce their energy intake by about 300 calories on average.

So we know that in most instances, if you practice time-restricted eating, you unintentionally reduce your energy intake. And the data shows that on average from the studies that are published, it's about 300 calories. Obviously depends on the duration. The reduction in body weight also we know is dependent on the eating window.

So we know that in most instances, if you practice time-restricted eating, you unintentionally reduce your energy intake. And the data shows that on average from the studies that are published, it's about 300 calories. Obviously depends on the duration. The reduction in body weight also we know is dependent on the eating window.

So the smaller the eating window, the greater the reduction in body weight. But there have been some studies that actually control the amount of calories that people eat. but have some people having it in a bigger eating window, some in a smaller eating window.

So the smaller the eating window, the greater the reduction in body weight. But there have been some studies that actually control the amount of calories that people eat. but have some people having it in a bigger eating window, some in a smaller eating window.