Hydrogen Water Linked to Reduced Fatty Liver Disease in Mice
Hydrogen-rich water prevents progression of nonalcoholic steatohepatitis and accompanying hepatocarcinogenesis in mice
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
- Daisuke Kawai, Akinobu Takaki, Atsuko Nakatsuka, Jun Wada, Naofumi Tamaki, Tetsuya Yasunaka, Kazuko Koike, Ryuichiro Tsuzaki, Kazuyuki Matsumoto, Yasuhiro Miyake, Hidenori Shiraha, Manabu Morita, Hirofumi Makino, Kazuhide Yamamoto
- Journal
- Hepatology
- Year
- 2012
- PMID
- 22505328
- Study Type
- Mouse
- Delivery
- Water, Commercial (Blue Mercury)
- Dose
- hydrogen-rich water for 8 weeks
- Duration
- 8 weeks
- Outcome
- Positive
- Peer Reviewed
- Yes
- Cited by
- 135 (OpenAlex, as of November 2026)
- Country
- Japan
TL;DR
Drinking hydrogen-rich water or taking the drug pioglitazone can reduce liver damage and tumor growth in mice with a disease similar to human fatty liver disease.
Key Finding
In mouse models of fatty liver disease and liver cancer, hydrogen-rich water reduced liver inflammation, oxidative stress markers, and tumor development with effects comparable to or stronger than pioglitazone, a standard pharmaceutical treatment.
Summary
Researchers tested whether hydrogen-rich water could help prevent liver damage in mice with nonalcoholic steatohepatitis (NASH), a serious liver condition caused by fat buildup. They fed mice a diet that causes NASH and gave some groups hydrogen-rich water while others received regular water or a drug called pioglitazone. Hydrogen-rich water reduced markers of liver damage, inflammation, and oxidative stress (harmful molecules that damage cells) similarly to or better than the drug. In a second experiment using mice prone to developing liver cancer from NASH, hydrogen-rich water also reduced the number and size of tumors that formed.
Practical Takeaway
While these results are promising, they come from mouse studies only and have not been tested in humans. The findings suggest hydrogen-rich water may help protect against liver damage through antioxidant effects, but much more research—including human clinical trials—is needed before any health claims can be made. Anyone with liver disease should consult their doctor before trying hydrogen water as a supplement.
Abstract (excerpt)
Oxidative stress is a strong contributor to the progression from simple fatty liver to nonalcoholic steatohepatitis (NASH). Molecular hydrogen is an effective antioxidant that reduces cytotoxic reactive oxygen species. In this study, we investigated the effects of hydrogen-rich water and the drug…