How Hydrogen May Work in the Body: New Theory on Metal Interactions
A hypothesis on chemical mechanism of the effect of hydrogen
Research hubs: Oxidative Stress · Inflammation

- Evidence type
- Review or commentary
- Authors
- Penghui Shi, Wancang Sun, Pengzhong Shi
- Journal
- Medical Gas Research
- Year
- 2012
- PMID
- 22721274
- Study Type
- clinical
- Peer Reviewed
- Yes
- Cited by
- 10 (OpenAlex, as of November 2026)
- Country
- China
TL;DR
Scientists think hydrogen might help our bodies stay healthy not just by directly fighting bad chemicals, but also by attaching to special proteins that contain metals and helping them work better. This new idea could explain why hydrogen seems to help with inflammation and protecting our cells in many different ways.
Key Finding
Hydrogen may exert its protective effects not only through direct neutralization of harmful molecules, but also by binding to metalloproteins and regulating their function.
Summary
This article proposes a new theory for how hydrogen might work in the body. Previous research suggested hydrogen works by directly neutralizing harmful molecules called hydroxyl radicals, but this doesn't explain all of hydrogen's observed effects. The authors hypothesize that hydrogen may also work by binding to metalloproteins (proteins that contain metal atoms like iron or zinc), which could help regulate how the body produces and manages harmful molecules and sends cellular signals.
Practical Takeaway
This is a theoretical proposal, not experimental evidence—no new data is presented. While the hypothesis suggests a potentially broader mechanism for hydrogen's effects, it remains speculative and requires laboratory and animal testing before any conclusions can be drawn about hydrogen water's practical benefits for human health.
Abstract (excerpt)
Many studies have shown that hydrogen can play important roles on the antioxidant, antiinflammatory and other protective effects. Ohsawa et al have proved that hydrogen can electively and directly scavenge hydroxyl radical. But this mechanism cannot explain more new experimental results. In this…