Fermented foods: what to eat to cut inflammation | Prof. Tim Spector
ZOE Science & Nutrition
Intro
Hosts introduce the episode topic: fermented foods, guest Tim Spector, and why fermentation matters for health.
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 also shares emerging evidence that fermented foods could influence inflammation, immunity, metabolism, and even mood, often in a matter of weeks.
From a groundbreaking Stanford study to insights from ZOE’s research on 9,000 people, this episode reveals why fermented foods are more powerful, and more misunderstood, than most of us realise.
Tim breaks down the easiest ways to actually eat more fermented foods without overhauling your life. By the end, you’ll be questioning what’s in your fridge - and wondering if one tiny daily habit could do far more than you’d ever expect.
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Timecodes
00:00 Introduction
04:00 The critical difference between healthy fermentation and rotting
09:55 What 'double fermented' food means (and why it's better for you)
11:23 The cheese paradox: why is it so much healthier than milk?
14:12 Why you shouldn't be afraid of 'chemicals' in your food
17:02 Common fermented foods you didn't even know you were eating
18:47 The surprising reason microbes in beer and bread are killed
20:10 Surprising new science: the health benefits of dead microbes
22:07 Why did English-speaking countries stop eating fermented foods?
24:05 What is the real difference between pickling and fermenting?
26:55 The groundbreaking Stanford study that proved the power of fermented foods
30:00 ZOE's 9,000-person study: the results in just two weeks
30:55 The impact of 3 ferments a day on mood, energy, and bloating
34:50 The gut-brain axis: how microbes calm 'neuroinflammation'
37:30 Eating fermented food is like a 'vaccine' for your immune system
39:48 Why sourdough bread is easier to digest than regular bread
40:11 Are fermented foods better than probiotic pills?
44:47 The biggest myth about probiotics: they don't colonize your gut
46:39 Tim's breakfast hack to get two ferments in at once
48:15 The one simple pantry swap for all your stock cubes
49:05 A simple trick to train yourself to like kimchi
51:45 The simplest home ferment: garlic and honey
53:55 How to make your own sauerkraut with just two ingredients
55:08 What is the 'jellyfish' that makes kombucha?
01:00:06 Summary: the top 5 takeaways from this episode
📚Books by our ZOE Scientists
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
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Episode transcripts are available here.
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