Hydrogen Water Improves Metabolic Syndrome Based on Your Body's Hydrogen Levels
Hydrogen-Rich Water Effects in Metabolic Syndrome Stratified by Breath Hydrogen
Research hubs: Metabolic Syndrome · Cardiovascular System · Endocrine System
- Authors
- Darinka Korovljev, David Nedeljkovic, Alex Tarnava, Nikola Todorovic, Sergej Ostojic
- Journal
- Current Developments in Nutrition
- Year
- 2026
- DOI
- 10.1016/j.cdnut.2026.109164
- Study Type
- Human
- Outcome
- Positive
- Peer Reviewed
- Yes
- Country
- Serbia
- Health Condition
- Metabolic Syndrome
- Body System
- Cardiovascular
TL;DR
Drinking hydrogen-rich water (HRW) improved body composition and several metabolic health markers in adults with metabolic syndrome, with greater benefits among those with lower baseline breath hydrogen levels.
Key Finding
Adults with metabolic syndrome who drank 1,000 mL of hydrogen-rich water daily for 12 weeks showed significant improvements in waist circumference, body composition, fasting blood sugar, and cholesterol levels — with larger benefits seen in those whose bodies produced less hydrogen naturally.
Summary
This study tested whether drinking hydrogen-rich water (water infused with molecular hydrogen gas) for 12 weeks could improve health markers in 40 adults with metabolic syndrome — a cluster of conditions including excess belly fat, high blood sugar, and abnormal cholesterol that raises the risk of heart disease and diabetes. Participants were also grouped by how much hydrogen their bodies naturally produced, measured through a breath test. Both groups drinking hydrogen-rich water showed improvements in body weight, waist size, blood sugar, cholesterol, and a marker of inflammation called hs-CRP, compared to those drinking plain placebo water. Interestingly, people who naturally produced less hydrogen seemed to benefit more from the hydrogen-rich water.
Practical Takeaway
This small human trial suggests that hydrogen-rich water may support metabolic health in people with metabolic syndrome, and that individual differences in natural hydrogen production could influence how much benefit someone experiences. However, the study involved only 40 people and was funded by a hydrogen water product company, so results should be interpreted cautiously. Larger, independently funded trials are needed before drawing firm conclusions.
Abstract (excerpt)
Objectives: Metabolic syndrome increases the risk of cardiovascular disease and type 2 diabetes. Hydrogen-rich water (HRW) may improve metabolic function, though responses may vary with endogenous hydrogen production. This randomized, double-blind, placebo-controlled trial examined the effects…