ZOE Science & Nutrition
The world’s top scientists explain the latest health, nutrition, and gut health research and translate it into practical advice to improve your health & weight. Join ZOE Science & Nutrition, on a journey of scientific discovery. Hosted by Jonathan Wolf.
Episodes
November 20, 2025 • 56 mins
Plastic is everywhere. In our homes, on our streets, in our oceans. But recent research suggests it’s also inside us: in our blood, our organs, even our brain. So how concerned should we be?
Today, Jonathan and Dr. Federica Amati are joined by longevity doctor and clinician Dr. Sabine Donnai to explore one critical question: what does plastic exposure mean for our long-term health?
Dr. Donnai breaks down how microplastics travel...
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November 18, 2025 • 11 mins
Today we’re talking about gynaecological health.
Conditions like endometriosis and polycystic ovarian syndrome are more common than might think. Yet they’re often misunderstood, frequently undiagnosed, and are all too easily dismissed.
That’s why it’s essential for us to build a clear understanding of these conditions: How lifestyle factors can influence them, and when it’s time to seek expert care.
America’s gynecologist, Dr Je...
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November 13, 2025 • 64 mins
Are fermented foods the missing link in our health, or just the latest wellness trend?
In this episode, Professor Tim Spector, a world-leading scientist in gut health and co-founder of ZOE, challenges what we think we know about yogurt, cheese, kombucha, and more.
Tim uncovers why milk and cheese aren’t the same in your body - and the surprising science showing cheese might not be the heart villain it was once made out to be. He...
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November 11, 2025 • 13 mins
Today we’re diving into our immune health.
You can think of your immune system as your body’s personal physician. Diligently working around the clock to monitor, detect, and repair anything that might disrupt your health.
However, because it’s work is so seamless and silent, we often take it for granted.
So, how can we better support our internal MD?
Immunologist Jenna Macciochi joins me to explore how simple, everyday actions...
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November 6, 2025 • 51 mins
Is flavour just a sensory experience? Or the secret key to eating for health? In this episode, Spencer Hyman, flavour expert and co-founder of Cocoa Runners, joins Professor Tim Spector, world-leading scientist in nutrition and gut health, to uncover how the food industry manipulates taste to make us overeat, and how rediscovering real flavour could transform our wellbeing.
Spencer reveals the fascinating science of flavour and wh...
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October 30, 2025 • 59 mins
Try ZOE’s NEW app and gut health test: ZOE.com
Winter is almost here! Temperatures are dropping, clouds are descending, and the clocks have changed.
Many of you might be worrying that the Winter Blues are on their way, but perhaps they don’t need to be? Perhaps we can work with our natural, biological rhythms to fend off this blue phase.
Today, we’re joined by Prof. Debra Skene, Section Lead of Chronobiology at the University o...
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Get 6+ FREE breakfast recipes from nutrition experts: https://zoe.com/breakfastguide
Why do so many of us eat a "healthy" breakfast like cereal or muesli, only to feel hungry, tired, and foggy by 11 AM? And why is it so hard to break this routine, even when we know it’s not working?
In this episode, Jonathan Wolf speaks to Professor Ben Gardner, a leading expert in habit psychology, and Professor Tim Spector, a world-leading scie...
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October 16, 2025 • 55 mins
Get your free 5-step plan for hearing loss diagnosis and treatment: click here
Hearing loss affects 1 in 5 people globally, increases the risk of developing dementia, and has no cure.
An astonishing half a billion people have hearing loss, which impacts their ability to communicate and connect with others. Hearing loss cases are increasing fast, especially among younger people.
For many, hearing aids and cochlear implants can ...
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October 9, 2025 • 54 mins
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Have you ever wondered why you can lose weight on a diet, only for it to come back with a vengeance? If you’ve blamed yourself for a lack of willpower, our guest today argues you’ve been misled. The old mantra of “eat less, move more” is failing us, and the key to understanding why lies deep within our biology.
In this episode, Jonathan is joined by Dr. Andrew Jenki...
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Recap: Why you should eat 30 different plants every week | Hugh Fearnley-Whittingstall & Tim Spector
October 7, 2025 • 16 mins
Today, we’re talking about plants.
For years, our diets have been guided by a simple three word slogan: ‘five a day’. While it’s well established that eating fruit and vegetables is good for us, some experts believe the ‘five a day’ message puts too much emphasis on quantity, and not enough on variety.
So, is time to adjust our guiding plant principle?
I’m joined by Professor Tim Spector and chef Hugh Fearnley-Whittingstall, who...
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October 2, 2025 • 47 mins
Is your smartwatch just a fun gadget, or a serious medical device?
In this episode, Jonathan Wolf is joined by Dr. Malcolm Findlay, a leading consultant cardiologist, to explore the powerful health data available on your wrist. They decode the most misunderstood metric, Heart Rate Variability (HRV), and reveal how your wearable can provide clinical-grade insights into your heart's health.
Dr. Findlay explains the counter-intuiti...
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September 30, 2025 • 14 mins
If you’re a regular listener of this podcast, you’ll know that our cholesterol level is closely linked to heart health. With that in mind, it’s easy to be drawn to foods labelled as ‘low fat’, ‘reduced fat’ or ‘fat free’ - all of which promise to keep our cholesterol low and heart strong.
However, is it really that simple?
I’m joined by Professor Sarah Berry to break down the difference between good and bad cholesterol, bust som...
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September 25, 2025 • 56 mins
We’ve all been there: tossing and turning, checking the clock, and stressing about not getting enough sleep. But what if the secret to a good night’s rest isn’t in a pill or a product, but in changing your mindset and daily habits?
In this episode, we’re joined by Dr. Sophie Bostock, a leading sleep scientist and founder of The Sleep Scientist. Sophie has dedicated her career to helping people understand the science of sleep and h...
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September 23, 2025 • 15 mins
Today, we’re unwrapping the truth about chocolate.
For many of us, chocolate is a guilty pleasure. But what if I told you that you didn’t need to feel guilty?
Because it turns out that not all chocolate is created equal. And by changing the type of chocolate you eat, you can support your health instead of harming it.
In this episode, I’m joined by chocolate expert Spencer Hyman and Sarah Berry to show you how to enjoy chocolate ...
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September 18, 2025 • 68 mins
There's an unseen world inside you, teeming with trillions of tiny inhabitants. Just like any ecosystem, some bugs inside your gut microbiome are beneficial, while others wreak havoc, quietly disrupting your health. What if these disruptive "invasive species" are silently driving the rise of cardiometabolic diseases, the leading cause of illness and death in Western countries?
This episode reveals groundbreaking new ZOE research, ...
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September 16, 2025 • 13 mins
Research continues to confirm how important the gut is for overall health. From energy to immunity and even mood, it all seems to start with the gut. It’s no surprise then that the hunt for the next gut boosting hack has exploded in recent years.
So, are probiotics really the answer? Or is the fix already sitting on our supermarket shelf?
In this episode, Dr. Karan Rajan helps us separate science from marketing hype and shares th...
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September 11, 2025 • 52 mins
Many supplements claim to “boost” your immune system. Now, we all want to avoid getting sick during the winter months, but do any of these products really work? And is trying to “boost” your immune system even a good idea?
Jonathan speaks with Professor Daniel M. Davis, MBE — a leading expert on immunology and Head of Life Sciences at Imperial College London. Daniel has published 145 scientific papers, authored four best-selling s...
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September 9, 2025 • 15 mins
From Instagram reels to viral tweets, seed oils have become one of the latest nutrition villains. And the fear’s getting real. People are emptying their cupboards, terrified these everyday oils are silently wreaking havoc on their health.
So is this panic justified? Or does the science require further scrutiny?
Well, ‘scrutiny’ is Professor Sarah Berry’s middle name! She’s going to cut through the confusion, dig into the data, a...
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September 4, 2025 • 58 mins
We’re told vitamins are essential for our health. That they boost our immune systems, fight fatigue, and protect us from disease. But what if most of it isn’t true?
In the 20th century, vitamin supplements were hailed as a breakthrough, curing diseases like scurvy and rickets. But that success story took a turn. In the US, a law passed in 1994 — helped by a Hollywood ad campaign — removed almost all oversight from the supplement i...
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September 2, 2025 • 14 mins
Today, we’re asking: What should you eat?
This is the million-dollar question, one that we at ZOE have spent countless hours of podcast episodes trying to answer. However, all of this information can be overwhelming, turning breakfast, lunch, and dinner into a daily dilemma.
So, are there any simple tips we can keep in mind to reduce the stress around mealtimes?
I’m joined by nutrition experts Professor Christopher Gardner and ...
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