Hydrogen Gas Shows Promise as Safe Medical Treatment for Many Diseases
Hydrogen Is Promising for Medical Applications

- Evidence type
- Review or commentary
- Journal
- Clean Technologies
- Year
- 2020
- Study Type
- clinical
- Delivery
- inhalation
- Peer Reviewed
- Yes
- Cited by
- 34 (OpenAlex, as of November 2026)
- Country
- Japan
TL;DR
Scientists found that hydrogen gas might be an amazing new medicine because it can clean up harmful substances in your body that cause diseases, and it doesn't have any bad side effects. This could change how we treat lots of different health problems in the future.
Key Finding
Hydrogen gas can selectively neutralize harmful reactive oxygen species like hydroxyl radicals and peroxynitrite while appearing to cause no adverse effects in the body.
Summary
This review article examines hydrogen gas as a potential medical treatment. Hydrogen can neutralize harmful molecules called reactive oxygen species (unstable atoms that damage cells) and convert them into water. Because hydrogen is inert (chemically inactive) and appears to cause no side effects, researchers suggest it could become a new type of therapy for diseases related to oxidative stress (cellular damage from unstable molecules).
Practical Takeaway
This is a review article summarizing existing research rather than a new study with human participants, so it cannot establish whether hydrogen water or hydrogen gas actually works as a medical treatment in people. While the theoretical mechanism is interesting, much more rigorous human research would be needed before hydrogen could be considered an established therapy. Early evidence suggests potential, but claims of medical benefits are not yet supported by clinical trials.
Abstract (excerpt)
Hydrogen (H2) is promising as an energy source for the next generation. Medical applications using H2 gas can be also considered as a clean and economical technology. Since the H2 gas based on electrolysis of water production has potential to expand the medical applications, the technology has been…