Show notes
Microbiologist Justin Sonnenburg wants you to know that you – and all humans, really – are not alone. Inside each of us live uncountable bacteria without whom we could not survive. Nowhere is this symbiosis more vital, Sonnenburg says, than in the digestive tract – the gut – where trillions of bacterial collaborators help digest the foods that nourish us. Sonnenburg studies what makes this complex relationship work and how modern life is altering this important chemistry. He says the gut microbiome should be thought of as another organ. When it drifts out of balance, the effects ripple through our metabolism, our immune systems, and our nervous systems. Sonnenburg goes on to explain how dietary choices – like eating more fermented foods and fiber – can rebuild the microbiome, and why the field’s next frontier could help alleviate chronic disease. “It really is a full-body impact that our microbes are having,” Sonnenburg tells host Russ Altman on this episode of Stanford Engineering’s The Future of Everything podcast.
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Chapters:
(00:00:00) Introduction
Russ Altman introduces guest Justin Sonnenburg, a professor of microbiology and immunology at Stanford University.
(00:03:08) Path into Microbiome Research
How Sonnenburg became interested in the friendly microbes that live in and on the body.
(00:04:26) Bacteria as Partners
What are gut bacteria and how do they function in our bodies?
(00:06:23) Full-Body Effects
How gut microbes affect metabolism, immunity, and the brain.
(00:08:27) Industrialized Microbiomes
What does it mean that the gut microbiome has been “industrialized”?
(00:12:08) Feeding the Microbiome
Why is fiber important for gut health?
(00:15:59) Fiber Response
Study results from Stanford reflecting individual responses to fiber.
(00:17:14) Fermented Foods
How foods like yogurt, kimchi, sauerkraut, and kombucha can support microbiome diversity.
(00:20:36) Microbiome Therapeutics
How diet and microbial interventions could improve health.
(00:23:00) Food, Equity, and Access
Why microbiome health may require practical tools that work beyond major diet changes.
(00:24:02) Sharing Microbes
How social environments, diet, and exposure may influence the microbes people acquire.
(00:25:30) Precision Health
How the microbiome could help tune immunity, metabolism, and disease treatment.
(00:27:32) Women’s Health
Why reproductive health and women’s health are promising areas for microbiome research.
(00:28:33) Stanford Microbiome Research
How Stanford researchers are building interdisciplinary tools, tests, and therapies for microbiome science.
(00:30:36) Future In a Minute
Rapid-fire Q&A: microbiome health, daily decisions, and reversing Western disease trends.
(00:33:04) Conclusion
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