Hydrogen Therapy Shows Promise for Multiple Diseases
- Authors
- Bao Nguyen Puente, Victoria Habet, Craig R Wheeler, John N Kheir
- Journal
- Respiratory Care
- Year
- 2025
- DOI
- 10.1177/19433654251398759
- Study Type
- clinical
- Peer Reviewed
- Yes
- Country
- United States
- Health Condition
- Neurological Diseases
- Body System
- Neurological
TL;DR
Scientists found that a simple gas called molecular hydrogen might help treat lots of different diseases by reducing swelling and damage in our bodies, but we need more research and better ways to deliver it before doctors can use it widely.
Key Finding
Molecular hydrogen shows promise in laboratory and early clinical studies for treating neurological, cardiovascular, and other diseases, but human clinical evidence remains limited by small sample sizes and lack of standardized delivery systems.
Summary
This review examined research on molecular hydrogen (H2), a gas that may help treat various diseases by reducing harmful inflammation and protecting cells. While laboratory studies show promise, actual clinical trials in humans have been small and used different methods, making it hard to draw firm conclusions. The review highlights that better, standardized ways to deliver hydrogen therapy are needed before it can be widely tested and used in medical practice.
Practical Takeaway
This is a review of existing research rather than a new study, so it doesn't provide new evidence about hydrogen water's effects. The authors note that while preclinical (animal and lab) evidence is encouraging, actual human clinical trials have been small and inconsistent. Anyone considering hydrogen water should know that more rigorous, larger human studies are needed before strong health claims can be made.
Abstract
Molecular hydrogen (H2) has emerged as a promising therapeutic agent with potential applications across a wide range of conditions, including neurological, cardiovascular, oncologic, and respiratory diseases. Substantial preclinical studies attribute its benefits to selective antioxidant, anti-inflammatory, and cytoprotective properties. Published clinical findings are encouraging, although data are limited by small sample sizes, methodological variability, and the absence of standardized and validated commercially available delivery systems. This narrative review summarizes the current clinical experience with inhaled H2 therapy, discusses key challenges and limitations in the existing literature, and identifies areas of interest for future research, including the development of a validated delivery system to enable broader clinical investigation and application of H2 therapy.