Hydrogen and Vitamin C Protect Healthy Cells During Cancer Radiation Treatment
Combined Molecular Hydrogen and Vitamin C Treatment in Irradiated Normal and Cancer Cell Models: An Exploratory In Vitro Study and Case Reports
Research hubs: Oxidative Stress · Skin & Dermatology System · Brain & Nervous System
- Authors
- Michiko Miyakawa, Songbai Zhang, Jinan Behnan, Yu Ivy Zhang, Claudia Morganti, Keisuke Ito, Pauline Isakson, Per Uhlén, Ayako Miyakawa
- Journal
- Medical Sciences
- Year
- 2026
- PMID
- 42783453
- Study Type
- Human
- Participants
- 2
- Delivery
- Gas
- Dose
- 99.99% H2 gas at 250 mL/min inhaled through nasal cannula during intravenous vitamin C (25 g in 250 mL) administration, daily following each radiotherapy session
- H₂ concentration
- exceeding 1000 ppb
- Funding
- No external funding declared
- Conflicts of interest
- The H2JI1 hydrogen generator was provided free of charge by Doctors Man Co., Ltd., but the company had no role in study design, data collection, analysis, interpretation, manuscript writing, or publication decision.
- Outcome
- Positive
- Peer Reviewed
- Yes
- Cited by
- 0 (OpenAlex, as of November 2026)
- Country
- Sweden
TL;DR
Combined H₂ and vitamin C protected normal cells from radiation injury while increasing damage to cancer cells in vitro, with supportive observations from two radiotherapy patients.
Key Finding
In lab models, the hydrogen-plus-vitamin-C combination protected normal cells from radiation damage while simultaneously reducing cancer cell survival and increasing cancer cell death — suggesting a potentially selective effect.
Summary
This study tested whether combining molecular hydrogen gas and vitamin C could protect healthy cells from radiation damage while still allowing radiation to kill cancer cells. Researchers exposed normal blood vessel cells, breast cancer cells, and brain tumor (glioma) cells to the combination treatment alongside radiation in the lab. They also reported on two cancer patients who received this combination during radiotherapy. In lab experiments, normal cells showed better survival and less oxidative stress (cellular damage from unstable molecules), while cancer cells showed increased cell death.
Practical Takeaway
This early-stage study — combining lab experiments with just two patient case reports — suggests that hydrogen gas paired with vitamin C may help reduce radiation side effects like skin irritation and digestive symptoms without interfering with cancer treatment. The evidence is very preliminary; two patients is far too small to draw conclusions for general use. Anyone undergoing cancer treatment should consult their oncologist before trying any adjunct therapy.
Abstract (excerpt)
Background: Radiation therapy is widely used to treat cancer but frequently causes normal tissue toxicities that compromise patients' quality of life, highlighting the need for strategies that protect healthy tissue without reducing antitumor efficacy. Here, we investigated whether…