Hydrogen Protects Cells from Damage by Fighting Free Radicals
Molecular hydrogen suppresses free-radical-induced cell death by mitigating fatty acid peroxidation and mitochondrial dysfunction
Research hubs: Oxidative Stress · Immune System
This research was done on cells or tissue in a lab, not in people or animals.
- Evidence type
- Laboratory study (cells or tissue)
- Authors
- Katsuya Iuchi, Kiyomi Nishimaki, Naomi Kamimura, Shigeo Ohta
- Journal
- Canadian Journal of Physiology and Pharmacology
- Year
- 2019
- PMID
- 31295412
- Study Type
- Cell Culture
- Delivery
- Gas
- Outcome
- Positive
- Peer Reviewed
- Yes
- Cited by
- 36 (OpenAlex, as of November 2026)
- Country
- Japan
TL;DR
Hydrogen gas (H2) can protect cells from damage caused by harmful molecules known as free radicals.
Key Finding
Molecular hydrogen protected cultured human cells from free-radical damage by preventing fatty acid breakdown and preserving mitochondrial function and energy production.
Summary
Researchers tested whether molecular hydrogen (H2) could protect human cells from damage caused by free radicals (unstable molecules that harm cells). They exposed cells to a toxic substance and found that hydrogen gas reduced cell damage by preventing the breakdown of fats in cell membranes and protecting mitochondria (the cell's energy-producing structures) from dysfunction.
Practical Takeaway
This laboratory study in isolated cells suggests hydrogen may have protective effects against oxidative stress, but it is very early-stage research. Results in cell cultures do not automatically translate to effects in living humans, so much more research would be needed before drawing conclusions about hydrogen water's health benefits.
Abstract (excerpt)
Molecular hydrogen (H 2 ) was believed to be an inert and nonfunctional molecule in mammalian cells; however, we overturned the concept by reporting the therapeutic effects of H 2 against oxidative stress. Subsequently, extensive studies revealed multiple functions of H 2 by exhibiting…