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

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
DOI
10.2174/0127722708469109260622071700
Study Type
Mouse
Outcome
Positive
Peer Reviewed
Yes
Country
Morocco
Health Condition
Colitis
Body System
Gastrointestinal

This research was done in animals. Results in animals often don't carry over to people.

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…

Read the full abstract via DOI