Hydrogen Water Protects Heart Health in Obese Mice Study
Drinking Molecular Hydrogen Water Is Beneficial to Cardiovascular Function in Diet-Induced Obesity Mice
Research hubs: Metabolic Syndrome · Cardiovascular System · Endocrine System
This research was done in animals. Results in animals often don't carry over to people.
- Evidence type
- Animal study (mouse)
- Authors
- Haruchika Masuda, Atsuko Sato, Kumiko Miyata, Tomoko Shizuno, Akira Oyamada, Kazuo Ishiwata, Yoshihiro Nakagawa, Takayuki Asahara
- Journal
- Biology
- Year
- 2021
- PMID
- 33922704
- Study Type
- Mouse
- Delivery
- Water (Mg-Chemico)
- Dose
- MHW intake for 2 weeks
- Duration
- 2 weeks
- Outcome
- Positive
- Peer Reviewed
- Yes
- Cited by
- 6 (OpenAlex, as of November 2026)
- Country
- Japan
TL;DR
Drinking water with added molecular hydrogen can protect the heart in mice that are obese due to a high-fat diet.
Key Finding
Molecular hydrogen water reduced heart enlargement and improved heart function in obese mice, even without affecting body weight or blood sugar levels.
Summary
Researchers gave obese mice drinking water infused with molecular hydrogen (a gas with antioxidant properties) for 2 weeks and compared them to mice drinking regular water. The hydrogen water did not reduce body weight or blood sugar, but it did shrink enlarged hearts, improve heart function, and promote beneficial changes in fat tissue and blood vessel cells in the obese mice.
Practical Takeaway
This is early-stage research in mice only, so results cannot yet be applied to humans. The findings suggest molecular hydrogen water may have heart-protective effects in obesity-related conditions, but human studies would be needed to determine if these benefits translate to people.
Abstract (excerpt)
Molecular hydrogen (MH) reportedly exerts therapeutic effects against inflammatory diseases as a suppressor of free radical chain reactions. Here, the cardiovascular protective effects of the intake of molecular hydrogen water (MHW) were investigated using high-fat diet-induced obesity (DIO) mice…