Can what you eat protect your memory, ease brain fog, and lift your mood? For a long time, we thought the brain was separate from the rest of the body. It's easy to assume that mood, energy, and memory have little to do with what's on your plate. But in today's episode, one of the world’s leading experts in nutrition, Professor Tim Spector, explains how your gut health shapes your brain health. From low energy and anxiety today to dementia in later years, he shares what to eat to protect your brain throughout your life. Tim shares nine foods to add to your diet - from mushrooms and eggs to tofu and fermented foods - with easy ways to eat more of them, all drawn from his new book, Good Mood Food. By the end of the episode, you will have learned quick, budget-friendly recipes that support the gut-brain connection and will clearly understand the four principles you need to start boosting brain function today. What if your tiredness, brain fog, and low mood are linked to the food on your plate? What might change if you ate differently for two weeks? 🌱 Try our science-backed and tasty wholefood supplement Daily30 🌿Let your gut microbes snack on the ZOE Gut Health Bar Build healthy habits. Download the ZOE app today and start your trial for just £2.30 for your first week. 👉 Join ZOE Follow ZOE on Instagram. Timecodes 00:00 Intro 04:24 Why better gut health shows up in your brain first 06:05 Gut-brain connection explained: the vagus nerve is 80% gut to brain 10:30 Is the “chemical imbalance” theory of mental illness wrong? 12:28 What a week of fried chicken does to your brain 15:20 How a gut-friendly diet sends calming signals to your brain 17:17 How inflammation and blood sugar spikes damage brain cells 19:33 Does type 2 diabetes really triple dementia risk? 23:03 SMILES trial: can a gut-friendly diet ease depression? 26:06 How many plants should you eat per week? 30 or 40? 28:22 Why ultra-processed food is bad for your brain:t’s not just additives 29:56 Can intermittent fasting lift your mood? 32:44 Always tired? Why it might be a brain signal 36:19 Healthy comfort food: mac and cheese, fish and chips 39:16 Are mushrooms linked to 25% lower dementia risk? 42:18 Are eggs good for brain health? How many a week is OK? 44:03 Best omega-3 foods for brain health: the SMASH fish rule 46:27 Is tofu good for your brain? How to cook it in 30 seconds 49:52 Do herbs and spices help your brain? What we know so far 52:10 Is your brain really made of fat? Why nuts and seeds matter 54:29 Do you need to soak beans and lentils for hours? 56:41 Don’t pour away chickpea water: egg white swap 58:52 Does heating fermented foods kill the benefits? Postbiotics explained 1:00:17 Where to start for better mood and brain health: try this for 2 weeks 📚Books by our ZOE Scientists The Food For Life Cookbook Every Body Should Know This by Dr Federica Amati The Appetite Reset by Dr Federica Amati Food For Life by Prof. Tim Spector Ferment by Prof. Tim Spector Good Mood Food (preorder) by Prof. Tim Spector Free resources from ZOE The Smart Snacking Guide: How to feed your gut, fuel your day, and snack without guilt The Hormone Harmony Guide: Tuning Your Body’s Internal Orchestra Eating for Better Brain Health: Your brain-gut blueprint 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 Good Mood Food (preorder) by Prof. Tim Spector The ZOE METHOD study, ZOE (2024) Daily30: Does it work?, ZOE (2026) ZOE’s Fermented Food study, ZOE (2025) The ‘SMILES’ trial, BMC Med (2017) Type 2 Diabetes and Dementia, J Int Neuropsychol Soc (2004) The Big IF Study, ZOE (2023) Mushroom Consumption and Dementia, J Am Geriatr Soc (2017) Egg Consumption and Brain Function, Nutrients (2024) Tofu Consumption and Reduced Cancer Risk, Nutrients (2024) Unlocking Saffron’s Potential in Brain Health, Cureus (2025) Episode transcripts are available here.
