Apr 9, 2026

The viral TikTok trend of fibermaxxing suggests you should eat between 50-100g/day of fiber, two to three times the recommended amount. Chris and Sophie delve into the evidence about whether it actually does lower cholesterol, prevent cancer, and boost your immune system. Also, two new faces join the team.

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Editor:    Robyn Flynn

Producer: Sophie Tseng Pellar

Theme music: “Fall of the Ocean Queen“ by Joseph Hackl

Rod of Asclepius designed by Kamil J. Przybos

Chris’ book, Does Coffee Cause Cancer?: https://ecwpress.com/products/does-coffee-cause-cancer

Obviously, Chris is not your doctor (probably). This podcast is not medical advice for you; it is what we call information.

References:

1. Epidemiological studies showing lower disease risk:

   1. https://www.thelancet.com/journals/lancet/article/PIIS0140-6736(18)31809-9/fulltext

   2. https://www.bmj.com/content/347/bmj.f6879

   3. https://jamanetwork.com/journals/jama/fullarticle/202011

   4. https://pubmed.ncbi.nlm.nih.gov/40651334/

2. Fiber and cholesterol: https://pubmed.ncbi.nlm.nih.gov/30239559/

3. Fiber and weight loss: https://pubmed.ncbi.nlm.nih.gov/37163454/

4. Fiber and diabetes: https://pmc.ncbi.nlm.nih.gov/articles/PMC11155034/

5. Fiber and the microbiome: https://www.cell.com/cell/fulltext/S0092-8674(21)00754-6

6. Fiber and irritable bowel syndrome: https://www.bmj.com/content/339/bmj.b3154

7. Fiber and colon cancer: https://pubmed.ncbi.nlm.nih.gov/17855692/