Hydrogen and Immediate Medical Applications

hospital gas

Hydrogen as a medical gas is also growing because it has immediate medical applications to help with many of the current health crises 2, 3. Dixon and colleagues of Loma-Linda University reported that hydrogen has potential to help with the top 8/10 disease-causing fatalities as listed by the Centers of Disease Control 4. Dr. Banks,from the VA/U of Washington, reported that ingestion of hydrogen-rich water was protective against neurodegenerative changes induced by traumatic brain injury in mice 5. Their results show that hydrogen administration reduced brain edema, blocked pathological tau expression, and maintained ATP levels. This and other studies have profound effects for events where brain injury (e.g. concussion, chronic traumatic encephalopathy, etc.) is a common occurrence 6. Although many people report dramatic effects of hydrogen therapy, from rapid pain and inflammation relief to normalization of glucose and cholesterol levels, other people may not notice any immediate or observable benefits. Hydrogen is not considered a powerful drug, and as mentioned only helps bring the cell/organ back to homeostasis without causing major perturbations. Perhaps some of the reported dramatic effects can be attributed to the placebo effect or other things, although some researchers have noted that some people are more sensitive to hydrogen and experience greater effects. More human studies are needed to answer these questions.

Human Research

Although the research on hydrogen looks promising in the cell or animal models, more long-term clinical trials are required to confirm its efficacy in humans 7. There are only a total of 40 human studies; few are in a double-blinded placebo controlled randomized fashion with sufficient subject numbers. A few of these clinical studies suggest that ingestion of hydrogen-rich water was beneficial for metabolic syndrome 8, diabetes 9, and hyperlipidemia 10, 11. Another 1-year placebo-control clinical study suggested that hydrogen-rich water is beneficial for Parkinson’s disease 12, while other clinical studies suggest significant benefits for rheumatoid arthritis 36, 13, mitochondrial dysfunction 14, exercise performance 15, athletic recovery time 16, wound healing 17, 18, 19, reductions of oxidative stress from chronic hepatitis B 20, improvements to blood flow 21, and periodontitis 22, in dialysis 23, 24, and also the quality of life in patients receiving radiotherapy for tumors 25 and others 35.

There have been an additional 15+ human studies completed with promising results, which are in the process of manuscript preparation and publication through the peer-reviewed process. More human studies are required to determine proper dosage, timing, method of administration, and for which diseases, and potentially genotypes, hydrogen is most effective 37. Hydrogen is still in its infancy, and more data is required before we can scientifically claim any real benefit, but the preliminary data is intriguing. The research on disease models, mechanisms of action, and clinical studies are particularly relevant because the high safety profile of molecular hydrogen make it a superior choice 26.


Hydrogen is naturally produced by intestinal flora upon digestion of fibers 27. A study from the University of Florida and the Forsythe Institute of Boston, Massachusetts confirmed that hydrogen produced from bacteria exerted therapeutic effects 28. They found that reconstitution of intestinal microbiota with H2-producing E. coli, but not H2-deficient mutant E. coli, was protective against Concanvalin A-induced hepatitis. Other studies also show that bacterially produced hydrogen from acarbose administration is therapeutic 29. Perhaps this helps explain why a large clinical trial from the Journal of American Medical Association (JAMA) found significant reductions in cardiovascular events by those taking the hydrogen-producing acarbose drug 29, 30. These studies not only suggest the therapeutic action of molecular hydrogen, but also demonstrate its high safety profile. Hydrogen is very natural to our bodies, as we are exposed to it on a daily basis as a result of normal bacterial metabolism 1. Additionally, hydrogen gas has also been used in deep sea diving since the 1940s to prevent decompression sickness 31, 32. Hundreds of human studies for deep sea diving have shown inhalation of hydrogen gas, at orders of magnitude greater than what is needed for therapeutic use, is well-tolerated by the body with no chronic toxic effects 33. In some people, however, it is reported that hydrogen may result in loose stools 34, and in rare cases with diabetics, hypoglycemia 14, which is controlled by reducing the level of insulin administered. The hundreds of studies on hydrogen from bacterial production, deep sea diving, and recent medical applications have not revealed any direct noxious side effects of hydrogen administration at biologically therapeutic levels. Such a high safety profile may be considered paradoxical because chemotherapeutic agents that exert biological effects should have both beneficial and noxious effects depending on dosage, timing, location, duration, etc. However, such noxious effects have yet to be reported for hydrogen. However, perhaps the noxious effects are so transient and mild that they are masked by the beneficial effects, or are even what mediate the beneficial effects via hormetic pathways.

Summing up it is uncommon to find a treatment that has both a high therapeutic potential and a high safety profile; hydrogen appears to fit this combination 38. That said researchers are becoming more interested in hydrogen simply due to its unforeseen ability to have a biological effect; with the realization that hydrogen is both safe and effective.

Source: Molecular Hydrogen Institute


  1. George, J.F. and A. Agarwal, Hydrogen: another gas with therapeutic potential. Kidney International, 2010. 77(2): p. 85-87.
  2. Zheng, Y. and D. Zhu, Molecular Hydrogen Therapy Ameliorates Organ Damage Induced by Sepsis. Oxid Med Cell Longev, 2016. 2016: p. 5806057.
  3. Nicolson, G.L., et al., Clinical Effects of Hydrogen Administration: From Animal and Human Diseases to Exercise Medicine. International Journal of Clinical Medicine, 2016. 7(1).
  4. Dixon, B.J., J. Tang, and J.H. Zhang, The evolution of molecular hydrogen: a noteworthy potential therapy with clinical significance. Med Gas Res, 2013. 3(1): p. 10.
  5. Dohi, K., et al., Molecular Hydrogen in Drinking Water Protects against Neurodegenerative Changes Induced by Traumatic Brain Injury. PLoS One, 2014. 9(9): p. e108034.
  6. Xie, F. and X. Ma, Molecular Hydrogen and its Potential Application in Therapy of Brain Disorders. Brain Disord Ther, 2014: p. 2.
  7. Chen, X., X. Sun, and S. Ohta, Future Directions in Hydrogen Studies. Hydrogen Molecular Biology and Medicine. 2015: Springer Netherlands.
  8. Nakao, A., et al., Effectiveness of Hydrogen Rich Water on Antioxidant Status of Subjects with Potential Metabolic Syndrome-An Open Label Pilot Study. Journal of Clinical Biochemistry and Nutrition, 2010. 46(2): p. 140-149.
  9. Kajiyama, S., et al., Supplementation of hydrogen-rich water improves lipid and glucose metabolism in patients with type 2 diabetes or impaired glucose tolerance. Nutrition Research, 2008. 28: p. 137–143.
  10. Song, G., et al., Hydrogen-rich water decreases serum LDL-cholesterol levels and improves HDL function in patients with potential metabolic syndrome. Journal of Lipid Research, 2013. 54(7): p. 1884-93.
  11. Zong, C., et al., Cigarette smoke exposure impairs reverse cholesterol transport which can be minimized by treatment of hydrogen-saturated saline. Lipids Health Dis, 2015. 14: p. 159.
  12. Yoritaka, A., et al., Pilot study of H(2) therapy in Parkinson’s disease: A randomized double-blind placebo-controlled trial. Movement Disorders, 2013.
  13. Ishibashi, T., et al., Consumption of water containing a high concentration of molecular hydrogen reduces oxidative stress and disease activity in patients with rheumatoid arthritis: an open-label pilot study. Medical Gas Research, 2012. 2(1): p. 27.
  14. Ito, M., et al., Open-label trial and randomized, double-blind, placebo-controlled, crossover trial of hydrogen-enriched water for mitochondrial and inflammatory myopathies. Medical Gas Research, 2011. 1(1): p. 24.
  15. Aoki, K., et al., Pilot study: Effects of drinking hydrogen-rich water on muscle fatigue caused by acute exercise in elite athletes. Medical Gas Research, 2012. 2(1): p. 12.
  16. Ostojic, S.M., et al., Effectiveness of oral and topical hydrogen for sports-related soft tissue injuries. Postgrad Med, 2014. 126(5): p. 187-95.
  17. Ishibashi, T., et al., Improvement of psoriasis-associated arthritis and skin lesions by treatment with molecular hydrogen: A report of three cases. Mol Med Rep, 2015. 12(2): p. 2757-64.
  18. Ono, H., et al., Hydrogen(H2) treatment for acute erythymatous skin diseases. A report of 4 patients with safety data and a non-controlled feasibility study with H2 concentration measurement on two volunteers. Medical Gas Research, 2012. 2(1): p. 14.
  19. Li, Q., et al., Hydrogen water intake via tube-feeding for patients with pressure ulcer and its reconstructive effects on normal human skin cells in vitro. Med Gas Res, 2013. 3(1): p. 20.
  20. Xia, C., et al., Effect of hydrogen-rich water on oxidative stress, liver function, and viral load in patients with chronic hepatitis B. Clin Transl Sci, 2013. 6(5): p. 372-5.
  21. Sakai, T., et al., Consumption of water containing over 3.5 mg of dissolved hydrogen could improve vascular endothelial function. Vasc Health Risk Manag, 2014. 10: p. 591-7.
  22. Azuma, T., et al., Drinking Hydrogen-Rich Water Has Additive Effects on Non-Surgical Periodontal Treatment of Improving Periodontitis: A Pilot Study. Antioxidants 2015. 4(3): p. 513-522.
  23. Nakayama, M., et al., Biological Effects of Electrolyzed Water in Hemodialysis. Nephron Clinical Practice, 2009. 112(1): p. C9-C15.
  24. Huang, K.C., et al., Electrolysed-reduced water dialysate improves T-cell damage in end-stage renal disease patients with chronic haemodialysis. Nephrology Dialysis Transplantation, 2010. 25(8): p. 2730-2737.
  25. Kang, K.-M., et al., Effects of drinking hydrogen-rich water on the quality of life of patients treated with radiotherapy for liver tumors. Medical Gas Research, 2011. 1: p. 11.
  26. Tao, Y., et al., The potential utilizations of hydrogen as a promising therapeutic strategy against ocular diseases. Ther Clin Risk Manag, 2016. 12: p. 799-806.
  27. Eastwood, M.A., The physiological effect of dietary fiber: an update. Annu Rev Nutr, 1992. 12: p. 19-35.
  28. Kajiya, M., et al., Hydrogen from intestinal bacteria is protective for Concanavalin A-induced hepatitis. Biochem Biophys Res Commun, 2009. 386(2): p. 316-21.
  29. Zhang, D.Q., J.H. Zhu, and W.C. Chen, Acarbose: a new option in the treatment of ulcerative colitis by increasing hydrogen production. Afr J Tradit Complement Altern Med, 2012. 10(1): p. 166-9.
  30. Chiasson, J.L., et al., Acarbose treatment and the risk of cardiovascular disease and hypertension in patients with impaired glucose tolerance: the STOP-NIDDM trial. JAMA, 2003. 290(4): p. 486-94.
  31. Case, E.M. and J.B. Haldane, Human physiology under high pressure: I. Effects of Nitrogen, Carbon Dioxide, and Cold. J Hyg (Lond), 1941. 41(3): p. 225-49.
  32. Dougherty, J.H., Jr., Use of H2 as an inert gas during diving: pulmonary function during H2-O2 breathing at 7.06 ATA. Aviat Space Environ Med, 1976. 47(6): p. 618-26.
  33. Friess, S.L., W.V. Hudak, and R.D. Boyer, Toxicology of hydrogen-containing diving environments. I. Antagonism of acute CO2 effects in the rat by elevated partial pressures of H2 gas. Toxicol Appl Pharmacol, 1978. 46(3): p. 717-25.
  34. Nagatani, K., et al., Safety of intravenous administration of hydrogen-enriched fluid in patients with acute cerebral ischemia: initial clinical studies. Med Gas Res, 2013. 3: p. 13.
  35. Ichihara, M., et al., Beneficial biological effects and the underlying mechanisms of molecular hydrogen – comprehensive review of 321 original articles. Med Gas Res, 2015. 5: p. 12.
  36. Ishibashi, T., et al., Therapeutic efficacy of infused molecular hydrogen in saline on rheumatoid arthritis: A randomized, double-blind, placebo-controlled pilot study. Int Immunopharmacol, 2014. 21(2): p. 468-473.
  37. Zhai, X., et al., Review and prospect of the biomedical effects of hydrogen. Med Gas Res, 2014. 4(1): p. 19.
  38. Ohta, S., Molecular hydrogen as a novel antioxidant: overview of the advantages of hydrogen for medical applications. Methods Enzymol, 2015. 555: p. 289-317.
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