New microbiome science | Dr Tim Spector
4/6/20261 hr 26 min
In this episode, I return to a conversation I promised to continue - sitting back down with Prof Tim Spector, MD, to explore everything that has changed in microbiome science since Episode 224. Tim and the ZOE team have now published a landmark Nature paper with 34,000 microbiome samples, run a clinical trial comparing personalized nutrition against government guidelines, and Tim has published a book on fermentation science.
We cover why most probiotics are scientifically obsolete, a practical ranked guide to fermented foods, the TMAO pathway linking gut bacteria to cardiovascular risk, and the estrobolome - the gut bacteria th...
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First 90 secondsSimon Hill· Host0:00
All righty, ladies and gentlemen, Dr. Tim Spector is back in the house. For those who missed our previous episode, Tim is a professor of genetic epidemiology at King's College London. He is the co-founder of ZOE, and he is one of the scientists most responsible for bringing microbiome science into the mainstream health conversation. In this episode, he returns to talk about a landmark paper recently published in the Journal of Nature that introduces what may be the most comprehensive microbiome ranking system developed to date. Across more than 34,000 participants in the United States and the UK, the team identified specific gut microbes that correlated with a range of cardiometabolic health markers, things like BMI, blood glucose, HbA1c, and lipids. And from this, they built the ZOE Microbiome Health Ranking, a validated reproducible tool for assessing gut microbiome health. Now, to be clear, these are associations with intermediary biomarkers rather than hard clinical outcomes like diabetes or cardiovascular disease. But in a field that has often struggled to produce large-scale reproducible findings, it's a significant methodological step forward. What I appreciate about Tim, and I think you'll hear during this conversation, is that he doesn't oversell the science, but he is genuinely excited about what this could mean for the future of microbiome research,