Treatments and supplements · Gut microbiome treatments

Can changing your gut bacteria help you lose weight?

What we can tell you today: how thoroughly this has been studied.

Well studied

3 studies, including one that brings together the results of several trials in people.

5 Repeated evidence 1 study

3 Small study in people 2 studies

This says how thoroughly something has been studied — not whether it works for you. What each study actually found is in the study itself, and in the plain-language write-ups we are adding.

Appears under: Weight loss and GLP-1 · Menopause and hormones · Skin aging

The studies

5 Repeated evidence Efficacy of microbiome-targeted interventions in obesity management- A comprehensive systematic review.
2025 · Diabetes & metabolic syndrome
3 Small study in people A dietary intervention for postmenopausal hot flashes: A potential role of gut microbiome. An exploratory analysis.
2023 · Complementary therapies in medicine · 84 participants
3 Small study in people Temporal Variation of the Facial Skin Microbiome: A 2-Year Longitudinal Study in Healthy Adults.
2021 · Plastic and reconstructive surgery