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ZOE Science & Nutrition

ZOE Science & Nutrition

Written by: ZOE
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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.Copyright 2024 ZOE Hygiene & Healthy Living Science
Episodes
  • Is eating like our ancestors the key to better health? What the Paleo diet gets right, and the 5 ancient diet claims that are dangerously wrong for your heart and gut health | Dr James Cole & Dr Federica Amati

    Is eating like our ancestors the key to better health? What the Paleo diet gets right, and the 5 ancient diet claims that are dangerously wrong for your heart and gut health | Dr James Cole & Dr Federica Amati
    Jul 9 2026
    We all want to eat healthier. The Paleo diet promises exactly that: eat like our ancestors, avoid modern foods, and improve your health. But does it really support your gut, heart and long-term health, or is the story more complicated? In this episode, Dr James Cole, a world-leading expert on prehistoric diets, joins Dr Federica Amati to explore what Paleo gets right and why some of the claims may be dangerously wrong. James explains what ancient evidence tells us about human diets, why the modern-day Paleo diet may go too far in its restrictions, and what that might mean for your heart disease risk and gut health. By the end of the episode, you’ll have ideas on what principles to keep from the Paleo diet, and what rules to avoid. Could trying to eat as our ancestors did force you to cut foods your body actually needs? Before you give up grains, beans or dairy, it may be worth asking what ancient humans really ate. 🌱 Try our science-backed and tasty wholefood supplement Daily30 🌿Let your gut microbes snack on the ZOE Gut Health Bar Get our brand-new app and Gut Health Test designed by world-leading gut health and nutrition scientists to build healthy eating habits 👉 Join ZOE Follow ZOE on Instagram. Timecodes 00:00 Intro 04:39 What does Paleolithic actually mean? 09:14 How scientists know what ancient humans ate 10:01 What ancient teeth reveal about diet 11:25 Why there was no single Paleo diet 13:16 The myth that ancient humans just ate meat 15:38 Why humans evolved to eat many foods 17:14 Why the human gut got smaller 22:13 How fire changed the human diet 24:02 Were ancient humans cooking plants? 25:51 What modern eating has lost 27:45 Did Paleolithic humans practise cannibalism? 30:37 Should we copy everything our ancestors ate? 32:56 What is the modern Paleo diet? 34:32 What the Paleo diet gets right 37:00 Did our ancestors eat meat every day? 38:18 Why Paleo cuts grains, dairy and beans 39:30 Are lectins in beans really dangerous? 41:27 Why modern Paleo may be based on shaky science 42:20 Is the Paleo diet healthy long term? 44:45 What a healthier Paleo diet would look like 46:17 The processed meat and cancer risk trap 48:37 Is grass-fed beef really better? 50:10 Should you fast like your ancestors? 52:10 How to cut ultra-processed foods without Paleo 56:20 What to eat instead of strict Paleo 📚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 The Paleolithic diet and chronic disease risk, Critical Reviews in Food Science and Nutrition (2026) Long-term Paleolithic diet is associated with increased serum TMAO concentrations, European Journal of Clinical Nutrition Evidence for mitigation of dental caries by Neanderthals, PLOS One (2026) Evidence for the diets of Neanderthals and early modern humans, PNAS (2009) Long-term effects of a Palaeolithic-type diet, European Journal of Clinical Nutrition (2014) The Big IF Study: What did we find? The Expensive-Tissue Hypothesis, International Journal of Molecular Sciences (2018) Have feedback or a topic you'd like us to cover? Let us know here. Episode transcripts are available here.
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    58 mins
  • Most replayed moment: Why breast cancer screening should be personalised | Dr. Thais Aliabadi

    Most replayed moment: Why breast cancer screening should be personalised | Dr. Thais Aliabadi
    Jul 7 2026
    Today we’re talking about breast cancer. Here at ZOE, we know that health is deeply personal - and breast cancer risk is no different. Your likelihood of developing breast cancer is shaped by factors such as genetics, body composition, and lifestyle. Understanding your individual risk is crucial because it helps determine when and how you should be screened - and in some cases, it could save your life. Today, I’m joined by Dr. Thais Aliabadi to explain why breast cancer screening shouldn’t follow a one-size-fits-all approach, and how her own experience with cancer has influenced the way she thinks about prevention. 🌱 Try our science-backed and tasty wholefood supplement Daily30 Get our brand-new app and Gut Health Test designed by world-leading gut health and nutrition scientists to build healthy eating habits 👉 Join ZOE Follow ZOE on Instagram. 📚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 Good Mood Food (preorder) by Prof. Tim Spector Free resources from ZOE 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 Have feedback or a topic you'd like us to cover? Let us know here. Episode transcripts are available here.
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    16 mins
  • How to build a better brain: The 5 foods you need to protect your memory, mood and to cut dementia risk | Prof Felice Jacka & Prof Tim Spector

    How to build a better brain: The 5 foods you need to protect your memory, mood and to cut dementia risk | Prof Felice Jacka & Prof Tim Spector
    Jul 2 2026
    Can food improve brain health, memory and mood? In this episode, Prof Felice Jacka and Prof Tim Spector explore how diet, the gut microbiome and fermented foods may affect your mood, brain function and dementia risk. Drawing on clinical trials and research involving more than 10 million people, they explain why what you eat could have a much bigger impact on your brain than most people realise, and what the latest science suggests you can do about it. Felice, who helped create the field of nutritional psychiatry, explains how food influences the brain through the gut microbiome and inflammation. She and Tim explore why some foods change brain function, which support brain health, what the evidence says about ultra-processed foods, and why diet is becoming an increasingly important part of research on brain and mental health. Learn which foods to eat more often, which foods to reduce, and simple, affordable ways to build meals that support your gut, mood and long-term brain health. From whole grains and legumes to fermented foods and everyday supermarket and grocery store choices, by the end of the episode, you’ll have realistic advice that’s easy to put into practice today. If the food you eat today helps shape your brain tomorrow, what small change could make the biggest difference over the next year? 🌱 Try our science-backed and tasty wholefood supplement Daily30 🌿Let your gut microbes snack on the ZOE Gut Health Bar Get our brand-new app and Gut Health Test designed by world-leading gut health and nutrition scientists to build healthy eating habits 👉 Join ZOE Follow ZOE on Instagram. Timecodes 00:00 Intro 03:10 Why beans may boost mood more than cake 07:35 Can diet reduce your risk of depression? 10:10 Can changing your diet put depression into remission? 12:45 How does the gut microbiome affect the brain? 16:04 Can gut microbes transfer depression symptoms? 17:55 What gut bacteria are missing in mental illness? 20:16 Is food the most powerful tool for brain health? 22:11 The yogurt study that surprised neuroscientists 25:35 Can fermented foods help grow the hippocampus? 28:18 Why fermented foods may improve mood and energy 30:16 The gut-brain connection explained simply 31:13 How diet during pregnancy affects brain development 37:52 Are depression, anxiety and dementia connected? 39:27 What are ultra-processed foods really doing to your brain? 39:55 The major study linking ultra-processed foods to disease 42:31 Are some ultra-processed foods healthier than others? 43:44 Real food vs meal replacements: what happens to your microbiome? 48:29 The ingredient Felice Jacka tries to avoid 50:16 Do supplements improve brain health? 52:23 The best foods for brain health and mental health 53:37 How to eat for brain health on a budget 55:40 The simplest brain health advice you’ll hear today 58:40 The complete brain health and gut health checklist 📚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 The 'SMILES' trial, BMC Medicine (2017) Mood Disorders: The Gut Bacteriome and Beyond, Biological Psychiatry (2024) ZOE study: Fermented food improves mood, energy, and hunger Effects of a probiotic fermented dairy product on the brain, Gut microbiota (2025) Associations between diet quality and depressed mood in adolescents, ANZJP (2010) Ultra-processed food exposure and adverse health outcomes, BMJ (2024) Global Burden of Disease, The Lancet (2026) Folic acid, ageing, depression, and dementia, BMJ (2002) Transplantation of gut microbiota derived from patients with schizophrenia induces schizophrenia-like behaviors, Nature (2024) 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 hr and 2 mins
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