editorial-office@sciformat.ca ARTICLE TITLE HYDROGEN WATER – HOW HEALTHY IS IT? DOI https://doi.org/10.31435/ijitss.2(50).2026.5975 RECEIVED 23 March 2026
Editor · International Journal of Innovative Technologies in Social Science · 2026
Research-use notice
Independent study record
Each H2HUBB study page organizes source-linked research details for educational use. Interpretation should remain proportional to the study design, population, controls, and limitations.
H2HUBB TAKEAWAY
In participants, the Korean study from 2020, which presents, to the authors' knowledge, the first double -blind placebo -controlled comprehensive study investigating the effects of H₂-water in healthy adults, demonstrated that 1.5 L of H₂- water intake for 4 weeks reduced cell death and inflammatory responses by modulating transcriptional networks of TLR-NFκB signaling. These findings add human evidence supporting molecular hydrogen's therapeutic potential to influence oxidative-stress regulation in healthy adults.
What the Findings Mean
H2HUBB reviewed how multiple hydrogen delivery methods (hydrogen-rich water, gas inhalation) was evaluated in this publication and summarizes the source-grounded findings below. The Korean study from 2020, which presents, to the authors' knowledge, the first double -blind placebo -controlled comprehensive study investigating the effects of H₂-water in healthy adults, demonstrated that 1.5 L of H₂- water intake for 4 weeks reduced cell death and inflammatory responses by modulating transcriptional networks of TLR-NFκB signaling.
What the Researchers Studied
The study used a narrative review. The comparison condition was placebo.
What Effects Did Molecular Hydrogen Have?
Source-reported hydrogen exposure: 600 mL hydrogen-rich water/day; dissolved H₂ concentration was not sufficiently reported, so H2HUBB did not estimate milligrams of H₂. The Korean study from 2020, which presents, to the authors' knowledge, the first double -blind placebo -controlled comprehensive study investigating the effects of H₂-water in healthy adults, demonstrated that 1.5 L of H₂- water intake for 4 weeks reduced cell death and inflammatory responses by modulating transcriptional networks of TLR-NFκB signaling. The authors concluded that hydrogen-rich water may mitigate mFOLFOX6 -induced liver injury, but the HRW does not affect the anti-cancer effects of the treatment (Yang et al., 2017). Four primary reactive oxygen species (ROS) are present in the human body. Superoxide anions (O₂−), hydrogen peroxide (H₂O₂), singlet oxygen (O₂), and hydroxyl radicals (OH) (Hirano et al., 2021; ‘Molecular Hydrogen as a Novel Antioxidant’, 2015a) Oxygen that escapes from the mitochondrial electron transport chain is reduced to form O₂−, which is subsequently converted to H₂O₂ by superoxide dismutase (SOD) and further reduced to water by enzymes such as catalase.
Why These Findings Matter
These findings add human evidence supporting molecular hydrogen's therapeutic potential to influence oxidative-stress regulation in healthy adults and contribute to the growing body of molecular-hydrogen research.
How Strong Is This Evidence?
This is human clinical evidence from a narrative review. H2HUBB interprets the findings in the context of the study design, sample, comparator, and measured outcomes rather than using one publication as a verdict on hydrogen therapy.
Technical Study Details
H2HUBB classifies this publication as human clinical study with human clinical evidence. The reported sample size was 6. The study used a narrative review. The hydrogen delivery method was multiple hydrogen delivery methods (hydrogen-rich water, gas inhalation). The source-reported hydrogen exposure was 600 mL hydrogen-rich water/day; dissolved H₂ concentration was not sufficiently reported, so H2HUBB did not estimate milligrams of H₂.
Limitations and Safety
Reported limitations: Human studies are limited by small sample sizes (Mizuno et al., 2018; Sim et al., 2020), typically 10 -50 participants, which restricts the generalizability of the findings.
Original Study and H2HUBB Research Context
H2HUBB presents this source-grounded research record as one contribution to the broader molecular-hydrogen evidence base. The original scholarly source is available at https://rspublisher.org/index.php/ijitss/article/download/5975/4330.