Hydrogen from Gut Bacteria May Fight Cancer by Boosting Immune Cells
- Authors
- Victor Pascal-Moussellard, Jean-Pierre Alcaraz, Stéphane Tanguy, Cordélia Salomez-Ihl, Philippe Cinquin, François Boucher, Emilie Boucher
- Journal
- Scientific Reports
- Year
- 2025
- DOI
- 10.1038/s41598-025-96346-3
- Study Type
- Mouse
- Outcome
- Positive
- Peer Reviewed
- Yes
- Country
- France
- Health Condition
- Melanoma
- Body System
- Immune System
TL;DR
Inulin, a dietary fiber, and inhaling hydrogen gas both boost the body's immune response and slow down the growth of skin cancer in mice.
Key Finding
Inhaled hydrogen gas produced comparable immune-stimulating and tumor-inhibiting effects to inulin consumption in mice, suggesting hydrogen generated from inulin fermentation may mediate inulin's antitumor properties.
Summary
Researchers studied whether molecular hydrogen (H2), a gas produced when gut bacteria break down inulin (a type of dietary fiber), might explain inulin's cancer-fighting effects. In mice, they compared eating inulin with inhaling hydrogen gas designed to match the exposure pattern from inulin digestion. Both treatments increased immune cells called T cells and slowed melanoma tumor growth similarly, suggesting that hydrogen gas—not inulin itself—may be responsible for the antitumor benefits.
Practical Takeaway
This mouse study provides early evidence that hydrogen gas might explain how inulin fights tumors, but it is far too preliminary to guide human treatment decisions. The research has not been tested in people, and translating mouse findings to human cancer therapy requires extensive additional research. Anyone considering inulin or hydrogen therapies for cancer should consult their oncologist.
Abstract (excerpt)
Inulin consumption and dihydrogen (H2) administration both exert antitumor effects on preclinical models as well as in clinical trials. As H2 is one of the major byproducts of inulin fermentation by bacterial species of the gut microbiota (GM), we hypothesized that H2 could mediate the antitumor…