ZOE Science & Nutrition

Would you like to stay healthy until you're 100? For most of us, the answer is, of course, yes. But why do some people live longer, and is it achievable?

In this episode, best-selling author and longevity expert Dan Buettner, explores what decades of studying the people who live the longest reveal about health and lifespan.

Instead of chasing hacks, the science suggests that a longer life is shaped by everyday food, social habits, and the places people live. We’ll look at practical habits seen across the world’s blue zones, rare global hotspots where celebrating your 100th birthday is common. Rather than relying on willpower, Dan explains why changing your routine and environment may be easier and more effective. By the end of the episode, you’ll have some simple tips to help you start your day like you live in a Blue Zone - and increase your chances of living healthily to 100.

Unwrap the truth about your food 👉 ⁠Get the ZOE app 

🌱 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

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Timecodes

00:00 Intro

01:24 What people who reach 100 actually eat

03:28 Why genes only explain 20% of longevity

07:20 What all Blue Zones diets secretly have in common

08:10 The high-carb pattern that shocks most people

09:20 Why grains and beans work together

10:50 The protein food that beats beef

11:55 Why plant protein comes with an extra benefit

12:15 Why fiber is the closest thing to a super nutrient

13:00 Why ‘fiber is sexy’ but ignored

15:05 A bathtub of meat vs how centenarians eat

15:50 You don’t have to be rich to eat well

17:25 Why deliciousness matters more than discipline

18:30 How many extra years diet can add

20:20 Why chasing longevity usually fails

22:40 What breakfast looks like at age 100

24:20 Why eating earlier helps your metabolism

25:45 The blood sugar crash that drives overeating

28:15 When ‘healthy’ yogurt has more sugar than Coke

31:15 How breakfast rules were shaped by food companies

33:30 The fasting window most people can manage

34:40 The overlooked habit: Blue Zones don’t snack

38:15 Why grumpy people don’t make it to 100

42:00 Why environment beats willpower

55:50 The five forces shaping long 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

Ferment by Prof. Tim Spector

Free resources from ZOE

How to eat in 2026 - Discover ZOE’s 8 nutrition principles for long-term health

Live Healthier: Top 10 Tips From ZOE Science & Nutrition

Gut Guide - For a Healthier Microbiome in Weeks 

Better Breakfast Guide

Mentioned in today's episode


Recipe: Sardinia Minestrone


The Blue Zones Kitchen One Pot Meals: 100 Recipes to Live to 100 by Dan Buettner


The ZOE BIG IF Study, MDPI (2024)


ZOE’s PREDICT studies: What we’ve learned 


Breaking Bread: the Functions of Social Eating, Adaptive Human Behavior and Physiology (2017)


Consuming media, consuming food: investigating concurrent TV viewing and eating using a 7-d time use diary survey, PHN (2021)

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

Episode transcripts are available here.

Inside each of us lives a bustling community of microbes; tiny organisms that outnumber our human cells. They’re there from the very moment we’re born, shaping our immune system and influencing our long-term health.

The science of the microbiome is evolving rapidly, but one thing is clear: We need to take care of these microbes so that they can take care of us.

Today, I’m joined by Dr. Suzanne Devkota and Tim Spector to explore how our gut bacteria protect us from disease and what we can do to strengthen this vital partnership.

🌱 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 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

Ferment 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 

Better Breakfast Guide

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

Listen to the full episode here

Dry January often raises big questions: how much alcohol is actually safe, and do you need to stop drinking altogether to protect your health? In this episode, world-leading alcohol expert Professor David Nutt explains why alcohol ranks as one of the most harmful drugs to society, how even “normal” drinking can affect your health, and what the science really says about cutting back without giving it up completely.

David, a neuropsychopharmacologist and former UK government drug adviser, explains why alcohol was ranked the most harmful drug overall in a landmark comparison of 20 drugs, how harm rises sharply as drinking increases, and unpacks common beliefs like red wine being “good for you”. The conversation also covers the social benefits of alcohol and why the goal isn’t necessarily to stop drinking, but to drink with awareness.

If you drink at all - whether it’s a glass most nights or more on weekends - this episode helps you understand where the real risks begin, and how to make alcohol work for you, not against you. And for listeners using dry January as a reset, David shares practical, science-based advice on how to cut down safely and sustainably.

If you’re pausing and reflecting this dry January, what might change when you start drinking again? And which habits are worth leaving behind for good?

Unwrap the truth about your food 👉 ⁠Get the ZOE app 

🌱 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 Intro

01:45 Humans have been drinking for 40,000 years - here’s why

07:20 Why your first drink feels good - and the next ones don’t

11:45 You don’t need addiction to be harmed

12:45 Alcohol ranked worst out of 20 drugs

13:10 Why alcohol beats heroin on total harm

14:05 Alcohol is toxic — in the same way disinfectant is

15:00 The ‘pickling’ process happening inside your body

15:30 How alcohol quietly damages your arteries

17:30 The fastest way to lower blood pressure

18:25 Will your cholesterol drop if you stop drinking?

19:35 The red wine myth people still believe

20:45 Is any amount of alcohol actually ‘worth it’?

22:10 When alcohol may still make sense socially

23:05 What a ‘unit’ actually looks like

24:25 Why harm rises much faster than you expect

24:55 A bottle a day can cost you years of life

25:30 Why alcohol helps you fall asleep - then wrecks it

27:45 What a hangover really is (it’s not dehydration)

31:20 Does alcohol actually shrink your brain?

32:25 The long-term brain study people ignore

39:30 When stopping suddenly can be dangerous

41:05 The single rule that stops most people overdrinking

📚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

Ferment by Prof. Tim Spector

Free resources from ZOE

How to eat in 2026 - Discover ZOE’s 8 nutrition principles for long-term health

Live Healthier: Top 10 Tips From ZOE Science & Nutrition

Gut Guide - For a Healthier Microbiome in Weeks 

Better Breakfast Guide

Mentioned in today's episode


Drug harms in the UK: a multicriteria decision analysis, The Lancet (2010). 


Obesity trajectories and risk of dementia: 28 years of follow-up in the Whitehall II Study, The Alzheimer's Association (2018)


Feasibility of detection and intervention for alcohol-related liver disease in the community: the Alcohol and Liver Disease Detection study (ALDDeS), British Journal of General Practice (2013)


Drink?: The New Science of Alcohol and Your Health by Professor David Nutt (2020)

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

Episode transcripts are available here.

Change is difficult. Our routines can feel locked in, our habits on autopilot, and the idea of a major lifestyle overhaul can seem impossible. 

However, Rich Roll is living proof that this isn’t the case. Once struggling with addiction and poor health, he transformed his diet, rebuilt his body, and completely rewrote his future.

In today’s conversation, Tim Spector and Rich Roll discuss why midlife is a crucial turning point for health, what happens to your microbiome when you change your diet, and why it’s never too late to make a dramatic shift.

🌱 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

Every Body Should Know This by Dr Federica Amati

Food For Life by Prof. Tim Spector

Ferment 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 

Better Breakfast Guide

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

Listen to the full episode here

What really happens when you stop dieting and start eating healthy? In this episode, we hear from two real people who spent years trying to “do the right thing” with food and still felt stuck. 

Today, we’re joined by Becky and Mark, two ZOE members sharing their personal journeys. Each of them has spent the past two years consistently applying ZOE nutrition principles. Instead of relying on rules or restrictions, they embarked on a science-led journey with ZOE, focused on understanding their bodies. The results? Truly remarkable - ZOE became such an important part of their lives that, alongside 18,000 other members of our community, they became ZOE owners through our crowdfunding. So what changed, and did it last?

Alongside Professors Tim Spector and Sarah Berry, we explore how Becky and Mark stay motivated and on track, the lessons they have learned, and the strategies they have used to feel more in control and more confident in their everyday choices. As well as some unexpected shifts along the way.

It’s a conversation about long-term change, not quick fixes, and you’ll leave it with real-life examples of how to make healthy eating a part of your everyday life.

If healthy eating wasn’t about willpower or perfection, what small change would you start with? And what would help you take that first step this week?

Unwrap the truth about your food 👉 ⁠Get the ZOE app 

🌱 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 Intro

05:20 The artificial sweetener trap no one talks about

08:20 The test result that caused panic

10:00 The stat that explains why diets “work”… then fail

12:05 Why calorie advice was “nice and easy”… and wrong

15:55 The “Mars bar” moment

17:10 The simple trick that stops you feeling deprived

18:10 Your biggest barrier might be the service station

19:25 Is bacon really that risky?

21:10 “Accidentally” becoming vegetarian

23:15 From three foods per plate to fifteen

24:15 The moment this turns into “poo in the post”

25:10 What actually happens to your sample in the lab

26:45 From 44 to 88 in one year

27:30 Why the magic starts after results day

29:10 The foods avoided for entire lives

30:00 The part of ZOE people underestimate

33:25 The meal-combining hack that changes everything

35:45 The daily score that keeps it sustainable

38:55 The claim people don’t believe: same weight for two years

44:05 The fatigue link your GP probably won’t ask about

45:47 The “nut box” rule (and what to drink instead)

52:05 How to make this last forever

📚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

Ferment by Prof. Tim Spector

Free resources from ZOE

How to eat in 2026 - Discover ZOE’s 8 nutrition principles for long-term health

Live Healthier: Top 10 Tips From ZOE Science & Nutrition

Gut Guide - For a Healthier Microbiome in Weeks 

Better Breakfast Guide

ZOE’s Holiday Hosting Guide

Mentioned in today's episode


Gut micro-organisms associated with health, nutrition and dietary interventions, Nature (2025)


Ultra-processed food exposure and adverse health outcomes, BMJ (2024)

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

Episode transcripts are available here.