Trusted affiliates

The people and projects we send readers to when they want to go deeper.

Gastroenterologist and author

Dr. Will Bulsiewicz

The Fiber Fueled work behind the 30-plants-a-week idea that shapes our plant variety question. Books, recipes and courses on plant-based gut care.

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At-home nutrition science

ZOE

Runs large-scale personalised nutrition research including gut microbiome and blood sugar testing, with a free daily science podcast.

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Citizen science microbiome testing

American Gut / The Microsetta Initiative

A UC San Diego research project you can join to have your own microbiome sequenced while contributing to open science.

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Probiotic and prebiotic science

ISAPP

The International Scientific Association for Probiotics and Prebiotics publishes free, jargon-light consensus explainers we lean on for probiotic claims.

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Research summaries

Gut Microbiota for Health

Plain-language write-ups of new microbiome papers, useful if you want to read past the headlines.

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IBS and FODMAP guidance

Monash FODMAP

The team that developed the low-FODMAP approach. Worth reading first if fibre changes tend to upset your gut.

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Affiliate disclosure

Some of the links above may earn us a small commission if you buy something, at no extra cost to you. We only list organisations whose work we already reference, and a commission never buys a spot on this page.