Your stomach is fine-tuned to deal with its acidic fluid, but the rest of your body isn’t quite as hardy.

The acid in your stomach is so powerful it can dissolve metal. Luckily, your stomach is fine-tuned to deal with its acidic fluid, but the rest of your body isn’t quite as hardy.

So, if acid escapes from your stomach and reaches your oesophagus, it can cause a painful sensation in the chest — this is heartburn. It isn’t rare, with more than 1 billion people suffering from it globally.

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The last decade saw a rise in gluten-free diets. But the number of us with diagnosed gluten intolerance each year hasn’t changed.

Eliminating gluten is the only treatment for those with celiac disease, but the rest of us could be doing more harm than good by embracing ultra-processed, gluten-free foods.

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In the first results update from the Big Poo Review, ZOE US Medical Director Dr Will Bulsiewicz brings you initial findings from the Big Poo Review survey, launched together with Channel 4's Steph's Packed Lunch.

He'll share which UK region poos the most, the differences between bowel habits of men and women, how frequently we're using the loo and what the most common type of poo is, among many other brilliant findings!

Each day this week, we’re examining one of the world’s most popular diets. Putting the latest scientific evidence under the microscope, we’ll find out the true impact of these diets on your health.

Today, we’re talking about the paleo diet, rooted in the idea of emulating our hunter-gatherer ancestors after concerns about the impact of a modern Westernized diet packed with highly processed foods.

However, the diet often involves consuming increased amounts of saturated fats, primarily from meat. This is associated with heightened cholesterol levels and heart disease risk.

In this special episode of ZOE Science & Nutrition, Jonathan is joined by Christopher Gardner, Professor of Medicine at Stanford University and the Director of Nutrition Studies at Stanford Prevention Research Center. Together, they dissect the diet’s potential benefits, pitfalls, and sustainability.

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Unfortunately, many of us spend our later years in poor health. But is this avoidable? And can we actually increase our healthy years?

While aging is inevitable, there are steps we can take to minimize its effects on our health. And surprisingly, some of these steps have nothing to do with exercise or diet. Simply spending time with others can provide countless benefits to us as we age.

But how can we maintain these connections? Does retirement affect our social interactions? And can attitude alone keep you healthier in your later years?

In today’s episode, one of the world’s top experts on aging, Prof. Rose Anne Kenny, joins us to explore these ideas.

Rose Anne is a world-leading geriatrician at Trinity College Dublin, where she leads a huge, long-term study on aging. She’s also the author of the number one international bestseller Age Proof: The New Science of Living a Longer and Healthier Life.

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In today’s short episode of ZOE Science & Nutrition, Jonathan and Will ask: Is lactose as dangerous as we’ve been led to believe?

Lactose is usually only discussed in the context of intolerance. This intolerance can make us feel bloated, gassy and uncomfortable. But from cow’s milk to yoghurt and even breast milk, lactose is everywhere! So, can it really be that bad for us?

In today’s short episode of ZOE Science & Nutrition, we’re joined by Dr Will B. to find out.

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Millions of us are counting calories every day. But do we know if those numbers truly reflect the energy we get from eating?

It’s about time that we debunked the “one-size-fits-all” approach to calorie counting and unmasked the outdated methodologies that contribute to inaccuracies in food labeling.

In today’s episode, Jonathan and Dr. Sarah Berry ask: How exactly do we measure calories, and is calorie counting actually effective?

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This week, Tim talks to us all about antibodies: what tests are available and what do they look for? What are the different types of antibodies and how do they work?

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Each day this week, we’re examining one of the world’s most popular diets. Putting the latest scientific evidence under the microscope, we’ll find out these diets' true impact on your health.

Today we’re talking about the keto diet, a global phenomenon favoring fats over carbs, lauded for potential health benefits like improved blood sugar control and weight loss.

Yet, the allure of keto does come with downsides. With a dearth of fiber and essential nutrients — as well a reputation for being notoriously difficult to keep on top of long-term — many find ketosis elusive.

In this special episode of ZOE Science & Nutrition, Jonathan is joined by Christopher Gardner, a professor of Medicine at Stanford University and the Director of Nutrition Studies at Stanford Prevention Research Center. Together, they unravel the keto diet's complexities, addressing its potential and pitfalls.

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A mummified man found in the mountains of Italy on a nutrition science podcast? Have we gone completely off track?

We haven’t - we promise.

This unfortunate soul could be the key that unlocks an entirely new understanding of human health.

This mummy, discovered in an alpine snow drift by two hikers, gives us a remarkable glimpse into the surprising dietary choices of our ancestors.

In today’s episode, Jonathan discovers some secrets held by our ancestors by speaking to two outstanding guests:

Frank Maixner works at the Institute for Mummy Studies in Italy and travels the world uncovering the secrets of our ancestors.
Tim Spector is a co-founder at ZOE and one of the top 100 most cited scientists in the world.

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In today’s episode we’re uncovering the medicines that are hiding in your kitchen.

Molecular biologist Kanchan Koya joins Jonathan and Sarah to explore the incredible health benefits of spices. From controlling blood sugar to soothing a sore throat, we’ll discover what the latest research says about household favourites including ginger, cinnamon and cloves.

Kanchan Koya is a food scientist, founder of the spice-centric food blog Chief Spice Mama and author of the cookbook ‘100 Recipes with Healing Spices for your Family Table’. She will show us how to get the most out of spices, with simple cooking tips and delicious recipes.

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Mushrooms are rich, varied and can taste great. So how good are they for your health and do they have more benefits than plants?

Jonathan talks with Dr. Merlin Sheldrake and Professor Tim Spector to try and find out.

Merlin is biologist at the heart of the mushroom movement. He’s author of the bestseller Entangled Life: How Fungi Make Our Worlds, Change Our Minds and Shape Our Futures.

Tim is a professor of genetic epidemiology at King’s College London, director of the Twins UK study, scientific co-founder of ZOE, and one of the world’s leading researchers.

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We’ve all felt the effects of food on our mood, so it would stand to reason that dietary intervention for mental health would be well studied and a regularly deployed treatment.

But this is far from reality, as historically, psychiatry was only concerned with what happened from the neck up.

In today’s episode, Jonathan is joined by Felice Jacka, Professor of Nutritional Psychiatry and Director of the Food & Mood Centre at Deakin University. Felice was the driving force behind the landmark study to determine if dietary intervention could help treat the symptoms of moderate to severe depression.

With her help, we dive into what the science suggests regarding the relationship between food and our mental health and what foods we can eat to improve it.

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What is it about ultra processed food that makes it so bad for our health?

Jonathan talks to Dr. Chris van Tulleken and Tim Spector to try and find out.

Dr. Chris van Tulleken is an infectious diseases doctor at University College Hospital, in London, and one of the BBC’s leading science presenters.

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Tim gives his reaction to the UK Prime Minister, Boris Johnson’s latest decision to delay ‘freedom day’.

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Professor Tim Spector shares a mid week data update from the COVID Symptom Study in light of the recent rise in COVID cases in the UK. For more localised data visit covid.joinzoe.com/data.

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She’s one of the world’s top nutrition scientists, but how does Dr Sarah Berry live her life behind the scenes? We join her for a typical day in her life at her home in London to find out.

From sleep to stress, eating to exercise, Sarah explains how conducting groundbreaking nutrition science impacts how she lives every day.

Sarah is an associate professor at King’s College London and has run more than 30 human nutrition studies. Most notably, she’s the lead nutritional scientist for PREDICT — the world’s largest in-depth nutritional research program.

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In today’s world, we increasingly live our lives late into the night. Whether it's work obligations, socializing, or being glued to a screen, we ignore the sun's rise and fall.

But most of us are unaware that a clock is ticking away inside us.

It uses light to keep time and tells us when to sleep and eat. Should we listen? Or is this biological clock simply a relic from a past time?

In today’s episode, Jonathan speaks to a leading authority to unravel the latest science that reveals that this body clock, or circadian rhythm, has a dramatic impact on our health, weight, and mental wellbeing:

Russell Foster is an Oxford University scientist who has dedicated his life to studying circadian rhythms. He’s a world leader in the field and the author of Lifetime: the new science of the body clock.

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Ivermectin has recently been hitting the headlines in the Americas as many people, seeking alternative treatments to the virus, believe it to have COVID-healing or preventative properties.

Tim explores the claims behind this so-called 'miracle drug' and where they come from, as well as Joe Rogan's experience with it, and crucially advises that far from being a solution, it can cause serious harm when used for the non-prescribed reasons.

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1 in 5 people suffer from food intolerances. A figure that is growing each year. As a result, people are eating evermore restrictive diets. Unfortunately, as they remove some foods, they add highly processed foods in their places, damaging their gut microbiome and leading to long term health problems.

Jonathan speaks to Will Bulsiewicz, board-certified gastroenterologist, New York Times best-selling author and Zoe's science board member whose latest book is all about food intolerance.

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Antibiotics can have a huge impact on your gut health. You may have turned to probiotics to combat these negative effects. But do they really help? And can fermented foods be the answer to reversing the damage to your gut microbiome?

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What gives Steven Bartlett the edge?

Spoiler: it’s not 5am starts and a carefully crafted morning routine.

If you haven’t already, meet Steven Bartlett: entrepreneur, investor, host of the Diary of a CEO podcast, and ZOE ambassador.

Hear from Steven what drove him to become the youngest dragon on BBC Dragon’s Den at 28, what’s most important to him now, and his goals for his health in 10 years’ time.

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If you had to do just one thing to improve your health, what would it be?

Our busy lives mean it can be difficult to keep up healthy habits, and with so much conflicting advice out there it’s tricky to separate fact from fiction. In today’s episode, Jonathan is joined by medical doctor, journalist, and presenter Michael Mosley, who is alongside ZOE regular Tim Spector, to discuss Michael’s four key habits to improve our health.

Michael’s latest book ‘Just One Thing’ explores these habits and has seen him speak to singing scientists and eccentric iceman to healthy habit experts and evangelists. And of course, being Michael, he tried every habit out himself. We talk about which methods are the most effective, which he has incorporated into his life, and how he makes his new habits stick.

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Vitamin D deficiency has been linked to a range of health issues, but can healthy people really benefit from supplementing their vitamin D intake?

Prof. Tim Spector and Dr. John Campbell discuss the merits and misconceptions of the so-called 'sunshine vitamin' and explore it's role in a healthy immune system - including whether science supports claims vitamin D supplements may protect against COVID-19

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