Hydrogen Water Reduces Oxidative Stress and Body Fat in Healthy Adults
Outcomes Assessment of Sustainable and Innovatively Simple Lifestyle Modification at the Workplace-Drinking Electrolyzed-Reduced Water (OASIS-ERW): A Randomized, Double-Blind, Placebo-Controlled Trial
Research hubs: Oxidative Stress
- Evidence type
- Randomized controlled trial · Human study
- Authors
- Young Ah Choi, Dong Hyeon Lee, Doo-Yeoun Cho, Yong-Jae Lee
- Journal
- Antioxidants
- Year
- 2020
- PMID
- 32605142
- Study Type
- Human
- Participants
- 61
- Delivery
- Water (Electrolysis)
- Dose
- 1.5 L/day for 8 weeks
- H₂ concentration
- 586.8 ± 20.5 μg/L
- Duration
- 8 weeks
- Funding
- Health Fellowship Foundation
- Conflicts of interest
- None declared
- Outcome
- Positive
- Peer Reviewed
- Yes
- Cited by
- 7 (OpenAlex, as of November 2026)
- Country
- South Korea
TL;DR
Drinking electrolyzed-reduced water (ERW) may help reduce oxidative stress and body fat more effectively than regular mineral water.
Key Finding
After 8 weeks, people drinking electrolyzed-reduced water showed significantly lower oxidative stress markers and higher antioxidant levels compared to those drinking regular mineral water, along with reductions in total, visceral, and subcutaneous fat mass.
Summary
This study tested whether drinking electrolyzed-reduced water (water treated with electricity to add hydrogen) could reduce oxidative stress—a chemical imbalance linked to aging and disease. Sixty-one healthy adults drank either 1.5 liters of this special water or regular mineral water daily for 8 weeks. The group drinking electrolyzed-reduced water showed lower levels of oxidative stress markers and higher antioxidant activity after 8 weeks, and also had reductions in body fat compared to the mineral water group.
Practical Takeaway
This small human study suggests that electrolyzed-reduced water may help reduce oxidative stress and support fat loss in healthy adults, though the study lasted only 8 weeks and involved just 61 people. More research is needed to confirm whether these effects persist over longer periods and whether they translate to meaningful health benefits for different populations.
Abstract (excerpt)
Oxidative stress has been associated with many diseases as well as aging. Electrolyzed-reduced water (ERW) has been suggested to reduce oxidative stress and improve antioxidant potential. This study investigated the effects of drinking ERW on biomarkers of oxidative stress and health-related…