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....
Recap: What the science says about intermittent fasting | Gin Stephens
Today we’re talking about intermittent fasting.
This form of time-restricted eating has been gaining significant popularity, with many people reporting positive effects after incorporating it into their daily routines. However, here at ZOE, we want to know what the science says about intermittent fasting.
Is it the real deal? Or just another fad?
I’m joined by Tim Spector and Gin Stephens to break down what intermittent fasting is, how it affects our bodies, and whether the scientific evidence supports it.
🥑 Make smarter food choices. Become a member a zoe.com - 10% off with code PODCAST
🌱 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
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14:30
How to transform your health in midlife | Rich Roll and Prof. Tim Spector
Midlife is often seen as a point of no return for health, but it could be the perfect moment to make a radical change. New research suggests that your gut microbiome holds the key to aging well, protecting you from chronic disease, and even reversing some of the damage from years of poor diet and stress.
Few people understand this better than Rich Roll, who went from an overweight, junk-food-addicted workaholic to one of the world’s fittest men - all after the age of 40. Now a plant-fuelled ultramarathoner and bestselling author, Rich shares the wake-up call that forced him to transform his life.
He’s joined by Professor Tim Spector, one of the world’s top 100 most cited scientists and professor of epidemiology at King’s College London, who explains why gut health becomes even more important as we age - and how small changes to diet, movement, and daily habits can have an outsized impact later in life.
🥑 Make smarter food choices. Become a member at zoe.com - 10% off with code PODCAST
🌱 Try our new plant based wholefood supplement - Daily 30+
*Naturally high in copper which contributes to normal energy yielding metabolism and the normal function of the immune system
Follow ZOE on Instagram.
Timecodes
00:00 A life-changing health transformation
00:38 Overweight, exhausted, and stuck at 40
01:16 How ultra-processed food harms your body
02:08 Can you really transform your health at midlife?
03:18 The biggest myth about changing your health
05:10 From addiction to peak performance
08:40 What happens to the body on a fast food diet
10:26 Unexpected benefits of a plant-based diet
15:30 Gut microbes control more than you think
21:19 Gut health, mood, and mental clarity - what’s the link?
25:00 Does exercise improve your gut microbiome?
27:55 How movement increases your healthspan
30:12 Do elite athletes have better gut health?
32:45 Fuelling extreme endurance without meat
36:00 Tim’s #1 food for gut health
39:05 How to make small changes that actually stick
41:30 Why motivation is overrated—just start
45:00 The mindset shift that makes exercise easier
48:20 It’s never too late to take control of your health
📚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
The anti-inflammatory effect of bacterial short chain fatty acids is partially mediated by endocannabinoids, 2021, published in Gut Microbes
Signatures of early frailty in the gut microbiota, 2016, published in Genome Medicine
Elevated Inflammatory Status and Increased Risk of Chronic Disease in Chronological Aging: Inflamm-aging or Inflamm-inactivity?, 2019, published in Aging and Disease
Heterochronic faecal transplantation boosts gut germinal centres in aged mice, 2019, published in Nature Communications
Have feedback or a topic you'd like us to cover? Let us know here.
Episode transcripts are available here.
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1:00:54
Recap: The misunderstood function of fat | Deborah Clegg
Today we’re discussing fat.
It’s a word that carries a lot of weight. It’s a source of social judgment, a driver of insecurities and a tool exploited by companies in targeted marketing campaigns. It’s no surprise that a recent study found over 40% of people in the US have experienced some form of ‘fat-shaming’.
But do we really understand fat? What it does, how it forms and why its distribution changes as we age.
Prof. Sarah Berry and Prof. Deborah Clegg are here to help us answer some of these questions and change our perception of fat. Deborah Clegg is a professor and Vice President for Research at the Texas Tech University Health Sciences Center, El Paso. Sarah is Chief Scientist at ZOE and Professor at King’s College London.
🥑 Make smarter food choices. Become a member a zoe.com - 10% off with code PODCAST
🌱 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
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11:47
3 simple steps to transform your metabolism | Shawn Stevenson and Prof. Tim Spector
Only 12% of American adults are considered metabolically healthy - meaning the vast majority are at increased risk of heart disease, diabetes, and strokes. But what exactly is metabolism, and why does it matter so much for our health?
In this episode, bestselling author and health expert Shawn Stevenson joins world-renowned scientist Professor Tim Spector to break down the science of metabolism. They’ll debunk the myth of “metabolic rate” and explain why it’s not just about how fast you burn calories - but how your body processes and uses them.
You'll discover how poor sleep, stress, and ultra-processed foods are impacting your metabolic health - and how this sets the stage for weight gain and chronic disease. More importantly, Shawn and Tim will share the simple, science-backed habits that can improve your metabolism, from eating nutrient-dense foods to optimizing movement and sleep.
🥑 Make smarter food choices. Become a member at zoe.com - 10% off with code PODCAST
🌱 Try our new plant based wholefood supplement - Daily 30+
*Naturally high in copper which contributes to normal energy yielding metabolism and the normal function of the immune system
Follow ZOE on Instagram.
Timecodes
00:00 The truth about your metabolism
04:00 What metabolism actually is
07:30 How ultra-processed food slows metabolism
10:20 Why most people aren’t metabolically healthy
14:00 Food shapes your body’s energy system
18:40 Brain inflammation and metabolism
22:50 How processed food changes calorie burn
27:15 Chemicals in food and air affect health
30:40 Why ultra-processed food harms children most
34:10 How processed food makes us overeat
38:25 Artificial ingredients and gut health
42:10 Can mitochondria be ‘hacked’?
45:00 Poor sleep increases fat storage
48:15 The biggest mistake before bed
50:30 Why breakfast matters for metabolism
52:40 Foods that spike blood sugar
54:20 Tim Spector’s go-to breakfast
55:50 One simple swap to improve metabolism
📚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
Examining Variations of Resting Metabolic Rate of Adults: A Public Health Perspective, 2013, published in Medicine & Science in Sports & Exercise,
Daily energy expenditure through the human life course, 2021, published in Science
Postprandial energy expenditure in whole-food and processed-food meals: implications for daily energy expenditure, 2010, published in Food and Nutrition Research
The Relationship between Sleep Duration and Metabolic Syndrome Severity Scores in Emerging Adults, 2023, published in Nutrients
Have feedback or a topic you'd like us to cover? Let us know here.
Episode transcripts are available here.
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59:18
Recap: Why we avoid exercise and how to overcome it | Daniel Lieberman
Today we’re exploring what evolution can teach us about exercise.
When it comes to doing exercise, there’s often a tug-of-war between our body and brain. Our body craves movement - it wants to be leaner, fitter, stronger. But our brain? Well, that’s a different story. It often dreads the thought of going on a run or lifting weights and will try and find any excuse to avoid doing it.
So, why does this conflict exist, and more importantly, how can we overcome it?
Harvard Professor of Biological Sciences Daniel Lieberman is here to unravel the mysteries of our exercising ancestors and explain how this can help us train today.
🥑 Make smarter food choices. Become a member a zoe.com - 10% off with code PODCAST
🌱 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
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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