ZOE Science & Nutrition Podcast

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Nutrition #30 in Health & Fitness Science
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89.3K - 148.9K listeners Female 4.6 rating 5954 reviews 225 episodes United Kingdom
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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.

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Recent Hosts, Guests & Topics

Here's a quick summary of the last 5 episodes on ZOE Science & Nutrition.

Hosts

Previous Guests

Microbiome expert, researcher specializing in gut health and microbiome analysis.
Professor of Genetic Epidemiology at King's College London, renowned researcher in microbiome and personalized medicine.
Tim Spector is one of the world's top 100 most cited scientists, a professor of epidemiology, and ZOE's scientific co-founder.
Dr. Sarah Berry is a world leading expert in large scale human nutrition studies, Professor of Nutrition at King's College London, and Chief Scientist at ZOE.
Simon Hill is a nutrition expert known for his work on plant-based diets and health.
Dr. Will Bulsiewicz is a gastroenterologist and gut health expert.
Harvard Medical School professor, expert in colon health and cancer research.

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Subscribers: 739,000
Total Videos: 463
Total Views: 72,639,740
Joined: Jan 29, 2020
Location: United Kingdom

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Hit subscribe for the best science-led health & nutrition content

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@zoe
ZOE | Science & Nutrition

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Change the way you eat, feel and live with ZOE.
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Episodes

Here's the recent few episodes on ZOE Science & Nutrition.

0:00 15:23

Recap: Simple steps to great gut health | Nicola Segata & Tim Spector

Hosts
Jonathan Wolf
Guests
Nicola Segata Tim Spector
Keywords
gut health microbiome immune function metabolic health mental well-being nutrition health research
Today were zooming in on our gut.

Its our favourite topic here at ZOE and for good reason! Research into the microbiome continues to reveal just how astonishingly far-reaching its effects are. From immune function to metabolic health, and even mental well-being, your gut is quite literally at the centre of everything!.

Im joined by microbiome experts Nicola Segata and Tim Spector to recap how we can nurture and take care of it in our daily lives.

Unwrap the truth about your food Get the ZOE app

Try our new plant based wholefood supplement - Daily30+

*Naturally high in copper which contributes to normal energy yielding metabolism and the normal function of the immune system



Books from our ZOE Scientists:

The Food For Life Cookbook by Prof. Tim Spector

Food For Life by Prof. Tim Spector

Every Body Should Know This by Dr Federica Amati



Free resources from ZOE:

Live Healthier: Top 10 Tips From ZOE Science & Nutrition

Gut Guide - for a healthier microbiome in weeks

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

Listen to the full episode here
0:00 55:37

Which supplements work — and which are a waste | Prof. Tim Spector & Prof. Sarah Berry

Hosts
Jonathan Wolf
Guests
Prof. Tim Spector Prof. Sarah Berry
Keywords
supplements gut health microbiome probiotics prebiotics nutrition randomized controlled trial vitamins diet plant diversity
Can pills and powders really improve our health? Despite their clinical look, most supplements aren’t tested with the scientific rigour we expect from medical treatments, and many don’t live up to their promises.

Today, we're joined by two of ZOE’s top scientists to uncover the truth. They share groundbreaking new research and reveal the results of a brand new randomized controlled trial that could reshape how we think about supplements and introduce an entirely new kind.

Tim Spector is one of the world’s top 100 most cited scientists, a professor of epidemiology, and ZOE’s scientific co-founder. He’s joined by Dr. Sarah Berry, a world leading expert in large scale human nutrition studies, Professor of Nutrition at King’s College London, and Chief Scientist at ZOE.

By the end of this episode, you’ll have the latest science to help you make informed decisions about supplements and understand what your gut health really needs in 2025.

Unwrap the truth about your food 👉 ⁠Get the ZOE app

Follow ZOE on Instagram.



Timecodes

00:00 Can supplements actually harm your health?

02:55 Why vitamin pills can do more harm than good

05:45 The truth behind scurvy, rickets, and early nutrition

08:30 Why we’re still stuck in a post-war supplement mindset

11:15 Should you supplement if you’re not deficient?

14:00 What calcium supplements are really doing to your heart

16:50 The real reason food companies add vitamins

19:20 The problem with your diet isn’t deficiency

21:45 Why fixing your diet is harder than it sounds

24:30 Why we need a new kind of supplement

27:10 Whole plants vs powders: why structure matters

29:40 Why plant diversity is the future of gut health

32:10 What’s the difference between prebiotics and probiotics?

35:05 Inside the randomized trial testing a new gut supplement

37:45 The science behind measuring real health impact

40:00 How the gut supplement changed the microbiome

42:30 Why probiotics worked… but much less

45:10 The surprising link between microbes and mood

48:20 How much did cholesterol and inflammation improve?

51:30 Could this reshape how we supplement in the future?





📚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 SpectorFree resources from ZOE

Live Healthier: Top 10 Tips From ZOE Science & Nutrition

Gut Guide - For a Healthier Microbiome in Weeks 



Mentioned in today's episode

The Evolution of Science and Regulation of Dietary Supplements: Past, Present, and Future, The Journal of Nutrition (2024)

Supplemental Vitamins and Minerals for Cardiovascular Disease Prevention and Treatment, Journal of the American College of Cardiology (2021)

Long-term multivitamin supplementation and cognitive function in men: a randomized trial, National Library of Medicine (2013)

A diverse high-fibre plant-based dietary intervention improves gut microbiome composition, gut symptoms, energy and hunger in healthy adults: a randomised controlled trial, MedRxiv (2024)



On calcium supplementation:

Dietary calcium intake and risk of fracture and osteoporosis: prospective longitudinal cohort study, British Medical Journal (2011)

Vitamin D and Calcium for the Prevention of Fracture: A Systematic Review and Meta-analysis, JAMA (2019)



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

Episode transcripts are available here.
0:00 14:53

Recap: Do you need to eat meat to build muscle? | Simon Hill & Will Bulsiewicz

Hosts
Jonathan Wolf
Guests
Simon Hill Will Bulsiewicz
Keywords
protein muscle building plant-based diets animal proteins plant proteins gut health
Today we’re diving into protein.

It’s the nutrient at the centre of some of the biggest debates in nutrition - especially when it comes to building muscle. And as more people adopt plant-based diets, one question keeps coming up: Can non-meat proteins really support strength and overall health?

So, what does the science say? Is it better to get our protein from animals or plants?

I’m joined by nutrition expert Simon Hill and Dr. Will Bulsiewicz to break down the benefits of both, and to explore how we can build muscle in the healthiest, most sustainable way.

Unwrap the truth about your food 👉 ⁠⁠Get the ZOE app⁠

🌱 Try our new plant based wholefood supplement - Daily30+

*Naturally high in copper which contributes to normal energy yielding metabolism and the normal function of the immune system

📚 Books from our ZOE Scientists:The Food For Life Cookbook by Prof. Tim Spector

Food For Life by Prof. Tim Spector

Every Body Should Know This by Dr Federica Amati



Free resources from ZOE:

Live Healthier: Top 10 Tips From ZOE Science & Nutrition 

Gut Guide - for a healthier microbiome in weeks

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

Listen to the full episode here
0:00 51:29

Harvard Doctor: Obesity, cancer, and the real cost of convenience food | Dr. Andy Chan

Hosts
Jonathan Wolf
Guests
Dr. Andy Chan
Keywords
ultra-processed foods gut health cancer prevention inflammation obesity diabetes colorectal cancer microbiome food labels addiction early onset cancer
Ultra-processed foods now make up over half of what many of us eat - and the health consequences are only just coming into focus. In this episode, we reveal what’s really happening inside your body when you eat these foods daily. 

Our guest is Dr. Andy Chan, a Harvard professor and leading expert on gut health and cancer prevention. He heads the Clinical and Translational Epidemiology Unit at Massachusetts General Hospital and has published over 400 scientific papers.

Dr. Chan breaks down the hidden links between UPFs, inflammation, and diseases like obesity, diabetes, and colorectal cancer. You’ll hear why some foods that look healthy on the shelf may be doing long-term damage - and how the gut microbiome plays a crucial role in the process.

This is the research big food companies don’t want you to hear. If you care about what you and your family are eating, don’t miss this conversation.

Unwrap the truth about your food 👉 ⁠Get the ZOE app

🌱 Try our new plant based wholefood supplement - Daily 30+

Follow ZOE on Instagram.



Timecodes

00:00 How much of our food is ultra-processed?

02:24 Can UPFs increase cancer risk in children?

04:48 Why our kids get sicker, earlier

07:12 How convenience took over our food choices

09:36 Are food companies engineering addiction?

12:00 UPFs and early onset cancer

14:24 Why calorie counting misses the point

16:48 Can a mother’s diet shape her child’s future health?

21:36 Is a poor diet as harmful as smoking in pregnancy?

26:24 Preservatives vs calories: what’s more harmful?

28:48 Brand new science: not all UPFs are equal

31:12 ZOE’s new processed food risk scale 

38:24 Why UPF labels are misleading and confusing

40:48 A simple trick: how to spot UPFs on food labels

43:12 Should schools and offices be UPF-free zones?

45:36 How to shape your kids’ eating habits for life



📚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



Free resources from ZOE

Live Healthier: Top 10 Tips From ZOE Science & Nutrition

Gut Guide - For a Healthier Microbiome in Weeks 



Mentioned in today's episode

Trends in Adults’ Intake of Un-processed/Minimally Processed, and Ultra-processed foods at Home and Away from Home in the United States from 2003–2018, 2025, The Journal of Nutrition

Ultra-processed food intake in toddlerhood and mid-childhood in the UK: cross sectional and longitudinal perspectives, 2024, European Journal of Nutrition

The Healthfulness of the US Packaged Food and Beverage Supply: A Cross-Sectional Study, 2019, Nutrients

Ultraprocessed Food Consumption and Cardiometabolic Risk Factors in Children, 2024, JAMA Network Open

Maternal consumption of ultra-processed foods and subsequent risk of offspring overweight or obesity: results from three prospective cohort studies, 2022, British Medical Journal



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

Episode transcripts are available here.
0:00 15:34

Recap: How to combat colon cancer | Dr. Andy Chan

Hosts
Jonathan Wolf
Guests
Dr. Andy Chan
Keywords
colon cancer screening diet gut health microbiome cancer prevention
Today, we’re diving into an important and growing health concern: colon cancer.

Recent studies show that cases of colon cancer are becoming increasingly common in younger adults. In fact, the rate has doubled among people under 50 since the 1990s, prompting doctors to lower the recommended age for screening.

So what can we do to protect ourselves and our loved ones?

I’m joined by Harvard Medical School professor, Dr. Andy Chan, to talk about the importance of colon cancer screenings and how changes to our diet could help reduce the risk of this disease.

Unwrap the truth about your food 👉 ⁠⁠Get the ZOE app⁠

🌱 Try our new plant based wholefood supplement - Daily30+

*Naturally high in copper which contributes to normal energy yielding metabolism and the normal function of the immune system



📚 Books from our ZOE Scientists:

The Food For Life Cookbook by Prof. Tim Spector

Food For Life by Prof. Tim Spector

Every Body Should Know This by Dr Federica Amati



Free resources from ZOE:

Live Healthier: Top 10 Tips From ZOE Science & Nutrition 

Gut Guide - for a healthier microbiome in weeks

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

Listen to the full episode here

Ratings

Global:
4.6 rating 5954 reviews

UK

4.6 ratings 3700 reviews

USA

4.6 ratings 1400 reviews

Australia

4.7 ratings 403 reviews

Canada

4.7 ratings 255 reviews

New Zealand

4.8 ratings 95 reviews

Ireland

4.5 ratings 62 reviews

South Africa

4.9 ratings 29 reviews

Singapore

4.1 ratings 10 reviews