ZOE Science & Nutrition

Christmas is a time of celebration, when friends and family gather to enjoy meals together. However, many of us overindulge, which leaves us feeling tired, bloated, and guilty. What actually happens to our bodies when we overeat, drink more, and swap fibre for sugar? And is there a way to enjoy the season’s pleasures without starting January full of regret? In this episode, ZOE’s Head Nutritionist, Dr Federica Amati, joins Jonathan to explore how festive food traditions shape our health and how to navigate them without guilt or restriction. Dr Federica shares practical suggestions for gut-friendly food swaps, festive traditions worth reviving, and the one ingredient she always includes on her own Christmas table. This episode is full of helpful advice on how to care for your body in a season that often asks us to do the opposite. 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. Recipes mentioned: Roasted Aubergine Traybake Juno’s Lasagne Super-simple kefir dressing Timecodes 00:00 Intro 01:13 Do we really need a detox? 02:19 Quick-fire myths: What’s truly bad at Christmas? 10:27 Can one indulgent day really damage your gut? 11:46 The foods that harm your gut most 13:20 What actually happens to your gut when you overeat for weeks? 15:13 Can you still eat mince pies guilt-free? 16:57 Does sugar really make kids hyperactive? 18:54 Why sugary drinks cause a post-Christmas health crash 21:14 Is eggnog the worst festive drink? 23:05 The truth about detox products 25:02 The evidence-based reset after Christmas 27:55 Why Zoe focuses on gut health first 29:52 Should you restrict food after Christmas? 31:39 The easiest way to eat better without trying 33:24 Healthy swaps that still feel festive 36:48 The global festive foods that support your gut 39:10 The surprising link between houses and gut health 41:55 Christmas stress, family arguments & the gut 44:55 Should you feel guilty about Christmas indulgence? 46:12 How bad is Christmas for your health? 46:25 Are we being manipulated by Christmas food marketing? 46:38 Coca-Cola changed Christmas?! 📚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 ZOE’s Holiday Hosting Guide Mentioned in today's episode The effect of sugar on behavior or cognition in children. A meta-analysis, JAMA (1995) Effects of sugar ingestion expectancies on mother-child interactions, Journal of Abnormal Child Psychology (1994) The ZOE BIG IF Study, MDPI (2024) Snack quality and snack timing are associated with cardiometabolic blood markers: the ZOE PREDICT study, European Journal of Nutrition (2024) Exploring the relationship between social jetlag with gut microbial composition, diet and cardiometabolic health, in the ZOE PREDICT 1 cohort, European Journal of Nutrition (2023) Effects of a personalized nutrition program on cardiometabolic health: a randomized controlled trial, Nature Medicine (2024) Have feedback or a topic you'd like us to cover? Let us know here. Episode transcripts are available here.