Hydrogen Water Reduces Gut Inflammation Caused by Common Food Additive in Mice
Effect of Hydrogen-rich Water on Chronic Kappa-carrageenan-induced Colitis in Weaned Female Swiss Albino Mice: A Preliminary Study
Research hubs: Digestive System
This research was done in animals. Results in animals often don't carry over to people.
- Evidence type
- Animal study (mouse)
- Authors
- Oumaima Anachad, Wafaa Taha, Hicham Wahnou, Imad Fenjar, Mohamed Rida Salam, Hasnae Zekhnini, Houssam Assoui, Amina Kardoudi, Abdelouaheb Benani, Faiza Bennis, Fatima Chegdani
- Journal
- Recent Advances in Inflammation & Allergy Drug Discovery
- Year
- 2026
- PMID
- 42439355
- Study Type
- Mouse
- Delivery
- Water
- Dose
- Hydrogen-rich water for two weeks following three months of carrageenan exposure
- Duration
- 4 months
- Outcome
- Positive
- Peer Reviewed
- Yes
- Cited by
- 0 (OpenAlex, as of November 2026)
- Country
- Morocco
TL;DR
Hydrogen-rich water reduced carrageenan-induced colitis in weaned mice, mainly by suppressing inflammation rather than altering gut bacteria.
Key Finding
Hydrogen-rich water significantly reduced intestinal inflammation markers in mice with carrageenan-induced colitis, lowering pro-inflammatory molecules and partially restoring protective immune factors.
Summary
This preliminary study tested whether hydrogen-rich water could help reduce intestinal inflammation in weaned mice exposed to carrageenan, a food additive found in many processed foods. Mice that drank hydrogen-rich water showed reduced signs of colitis (intestinal inflammation), including better weight maintenance, shorter disease symptoms, and lower levels of inflammatory molecules, though the effect on beneficial gut bacteria was limited.
Practical Takeaway
This is an early-stage animal study that suggests hydrogen-rich water may help protect against food additive-induced intestinal inflammation, but it does not yet provide evidence for human use. Much more research, including human trials, would be needed before any health recommendations could be made.
Abstract (excerpt)
Introduction: Food additives such as carrageenan, which are widely present in processed foods, can aggravate intestinal inflammation, particularly during the weaning period, a stage of high gut vulnerability. Weaned mice provide a relevant model to study how early dietary exposures influence…