Hydrogen Water Research
8 peer-reviewed studies supporting this intervention. Evidence rating: B
Study Comparison
| Study | Year | Type | Journal | Key Finding |
|---|---|---|---|---|
| Yıldız F et al. | 2025 | Study | Biochemical and Biophysical Reports | Comprehensive review of molecular hydrogen's mechanisms and therapeutic applications, supporting its potential as a novel therapeutic agent. |
| Dhillon G et al. | 2024 | Systematic Review | International journal of molecular sciences | Systematic review of 25 human studies found encouraging preliminary results for hydrogen water across exercise, cardiovascular, metabolic, and cognitive outcomes. |
| Li Y et al. | 2024 | Frontiers in nutrition | Meta-analysis confirmed molecular hydrogen significantly reduces exercise-induced oxidative stress markers (d-ROMs) and increases antioxidant capacity (BAP) in healthy adults. | |
| Todorovic N et al. | 2023 | Pharmaceuticals (Basel, Switzerland) | Meta-analysis found hydrogen-rich water significantly reduced total cholesterol and LDL-C in clinical populations, with larger effects in metabolically unhealthy individuals. | |
| Mikami T et al. | 2020 | Study | Canadian Journal of Physiology and Pharmacology | Four weeks of hydrogen water consumption improved endurance capacity and reduced mental fatigue in healthy adults compared to placebo. |
| Nicolson GL et al. | 2016 | Study | International Journal of Clinical Medicine | Systematic review of clinical trials found molecular hydrogen shows promise for oxidative stress-related conditions, though more rigorous trials are needed. |
| Ostojic SM et al. | 2015 | Study | International Journal of Sports Medicine | Review of molecular hydrogen showing potential for reducing exercise-induced oxidative stress and inflammation, with promising early human trial results. |
| Aoki K et al. | 2014 | Study | Medical Gas Research | Hydrogen-rich water reduced blood lactate levels and improved muscle fatigue in elite athletes during acute exercise, suggesting potential recovery benefits. |
Study Details
Biochemical and Biophysical Reports
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Updated review on the therapeutic potential of molecular hydrogen across various medical applications.
International journal of molecular sciences
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This comprehensive systematic review analyzed 25 human studies investigating the health effects of hydrogen-rich water (HRW). The review evaluated evidence across multiple domains including exercise performance, cardiovascular health, metabolic function, liver disease, and cognitive function.
The authors found that HRW showed promise across several areas, with the most consistent benefits observed in exercise recovery, oxidative stress reduction, and metabolic parameters. Many studies reported improvements in blood lactate levels, muscle fatigue, and inflammatory markers.
While the overall findings were encouraging, the authors emphasized that most studies were small-scale and heterogeneous in methodology, making definitive conclusions difficult.
Frontiers in nutrition
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This systematic review and meta-analysis specifically investigated whether molecular hydrogen supplementation could reduce exercise-induced oxidative stress in healthy adult populations. The analysis focused on validated oxidative stress biomarkers including derivatives of reactive oxygen metabolites (d-ROMs) and biological antioxidant potential (BAP).
The pooled results demonstrated that hydrogen supplementation significantly attenuated exercise-induced oxidative stress while simultaneously enhancing antioxidant capacity. These findings support the use of molecular hydrogen as a sports supplement for athletes seeking to manage oxidative stress from training.
The meta-analysis provides the most robust evidence to date for hydrogen's antioxidant effects in exercise contexts, though the authors call for additional large-scale RCTs to confirm these findings.
Pharmaceuticals (Basel, Switzerland)
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This systematic review and meta-analysis examined the effects of hydrogen-rich water (HRW) on blood lipid profiles across multiple clinical populations. The pooled analysis synthesized data from randomized controlled trials to evaluate changes in total cholesterol, LDL-C, HDL-C, and triglycerides.
The results demonstrated that HRW consumption significantly improved lipid profiles, particularly in populations with metabolic dysfunction. The effects were more pronounced in subjects with baseline dyslipidemia, suggesting HRW may be most beneficial for those with elevated cardiovascular risk.
The meta-analysis provides quantitative evidence supporting HRW as a potential adjunctive therapy for lipid management, though the authors note that more high-quality RCTs are needed.
Canadian Journal of Physiology and Pharmacology
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Randomized controlled trial examining chronic hydrogen water consumption effects on exercise performance and fatigue.
International Journal of Clinical Medicine
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Comprehensive review of clinical trials examining molecular hydrogen (H2) therapy across various conditions.
International Journal of Sports Medicine
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This review examines the emerging evidence for molecular hydrogen (H2) in sports and exercise contexts.
Hydrogen acts as a selective antioxidant, neutralizing harmful reactive oxygen species while preserving beneficial signaling molecules. Early studies suggest benefits for recovery and potentially performance.
Medical Gas Research
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Pilot study examining effects of hydrogen-rich water on exercise-induced muscle fatigue in elite athletes.
Evidence Assessment
This intervention has moderate evidence from some randomized trials and consistent observational data, though more research would strengthen conclusions.