Molecular hydrogen gas and water is speculative but possibly a therapy against cancer (https://www.frontiersin.org/articles/10.3389/fonc.2019.00696/full). Hydrogen is the smallest antioxidant and I think that the side effects of molecular water or gas are probably neglible (provided that hydrgoen gas isn’t inhaled more than a few hours a day and not more than a gallon or so of high concentration hydrogen water are consumed daily). However, clinical studies are needed in order to completely define the potential benefits and side effects.
If you would like to learn more please view the info on this link: https://www.cancertutor.com/hydrogen-water-cancer/
And you can research on pubmed: https://pubmed.ncbi.nlm.nih.gov/
It’s not a proven therapy but it is very easy to do and I view the risk/reward ratio as good and therefore drink 120-140 oz a day of molecular hydrogen water (1ppm concentration). I also breath 400ml/min of molecular hydrogen gas for about an hour a day.
Prostate Cancer Adventures 