Chronic diseases like heart disease, diabetes, and obesity are killing more people than ever before. Could your diet be the biggest driver of this risk?Today, Dr Mark Hyman explains why food matters more than genetics for long-term health, and how one diet change can make the biggest difference. Alongside Professor Tim Spector, Mark, a 15-times New York Times bestselling author and a practising family doctor, explores how modern eating is linked to chronic disease and what the science says reduces risk.We break down how food is designed to make us eat more, how this affects metabolism, insulin and inflammation, and why this matters more than your genes.By the end of the episode, you’ll understand the single most important dietary change Mark believes can lower chronic disease risk, based on clinical experience.If the modern world is driving these conditions, what’s one small change you can make to take back control of your future health?🌱 Try our science-backed and tasty wholefood supplement Daily 30+Get our brand-new app and Gut Health Test designed by world-leading gut health and nutrition scientists to build healthy eating habits 👉 Join ZOEFollow ZOE on Instagram.Timecodes📚Books by our ZOE ScientistsThe Food For Life CookbookEvery Body Should Know This by Dr Federica AmatiFood For Life by Prof. Tim SpectorFerment by Prof. Tim SpectorFree resources from ZOEEating for Better Brain Health: Your brain-gut blueprintHow to eat in 2026 - Discover ZOE’s 8 nutrition principles for long-term healthLive Healthier: Top 10 Tips From ZOE Science & NutritionGut Guide - For a Healthier Microbiome in Weeks Better Breakfast Guide Mentioned in today's episodeFood Fix Uncensored: Inside The Food Industry's Biggest Cover-Ups by Mark Hyman Salt, Sugar, Fat: How the Food Giants Hooked Us by Michael Moss Nourishment: What Animals Can Teach Us about Rediscovering Our Nutritional Wisdom by Fred Provenza Global Burden of Disease study: Diet vs. smoking, Lancet (2019) Ultra-Processed Diets Cause Excess Calorie Intake and Weight Gain, Cell (2019) The study of food addiction, Appetite (2010) Can fermented food fight inflammation? Breast Cancer Risk among US-Resident Polish Migrant Women, IJERPH (2021) Milk and Health, NEJM (2020)Have feedback or a topic you'd like us to cover? Let us know here.Episode transcripts are available here.