EP 189: From genetic heritability in twins to gut health with Tim Spector of King’s College London and Zoe

Summary: This week on The Genetics Podcast, Patrick is joined by Tim Spector, Professor of Genetic Epidemiology at King’s College London and co-founder of Zoe. They discuss surprising insights on heritability from decades of twin research, the profound impact of the microbiome on health and disease, and the effect of diet on the gut microbiome. Show Notes: 0:00 Intro to The Genetics Podcast00:58 Welcome to Tim and his journey from clinical medicine to pioneering twin studies and uncovering the heritability of diseases and traits07:20 Exploring missing heritability and why twin studies and GWAS offer different answers10:37 What a global mega twin registry could reveal about epigenetics, environment, and disease13:40 Findings from a twin microbiome study and how that evolved into a new chapter in Tim’s research career16:50 The profound impact of the microbiome on health21:08 Evolution in microbiome research techniques, microbe-diet associations, and the need for longitudinal studies 27:00 Potential reasons why fecal transplant did not turn out to be as effective as predicted28:53 The importance of balance in the gut microbiome and how it can be involved in cancer and the drug response35:54 Barriers to translating microbiome science into healthcare  38:38 The impact of microplastics and ultra-processed foods on the microbiome 41:27 Moving away from diversity measures for evaluating the microbiome and towards a more comprehensive score metric44:36 Closing remarks with information on Tim’s upcoming book as well as Zoe products and appFind out moreZoe (https://zoe.com)Please consider rating and reviewing us on your chosen podcast listening platform! https://drive.google.com/file/d/1Bp2_wVNSzntTs_zuoizU8bX1dvao4jfj/view?usp=share_link