Hydrogen Water Boosts Heart Energy Production in Animal Study
A new insight into the molecular hydrogen effect on coenzyme Q and mitochondrial function of rats
Research hubs: Cardiovascular System
This research was done in animals. Results in animals often don't carry over to people.

- Evidence type
- Animal study (rat)
- Authors
- Anna Gvozdjáková, Jarmila Kucharská, Branislav Kura, Ol’ga Vančová, Zuzana Rausová, Zuzana Sumbalová, Ol’ga Uličná, Ján Slezák
- Journal
- Canadian Journal of Physiology and Pharmacology
- Year
- 2020
- PMID
- 31536712
- Study Type
- Rat
- Delivery
- Water (Dissolved)
- Dose
- H2-rich water (HRW)
- Outcome
- Positive
- Peer Reviewed
- Yes
- Cited by
- 56 (OpenAlex, as of November 2026)
- Country
- Slovakia
TL;DR
Drinking hydrogen-rich water boosts energy production and antioxidant levels in heart cell powerhouses, potentially helping to prevent or treat heart-related diseases.
Key Finding
Hydrogen-rich water increased ATP production and coenzyme Q9 levels in rat heart mitochondria while reducing oxidative damage markers.
Summary
Researchers gave hydrogen-rich water to rats and studied how it affected the heart's mitochondria (the parts of cells that produce energy). They found that the hydrogen water increased the production of ATP (the molecule cells use for energy) and boosted levels of coenzyme Q9 (a compound that helps cells make energy). The hydrogen also reduced a harmful byproduct of metabolism called malondialdehyde. The researchers propose that hydrogen may help the mitochondria work better by participating in a process called the Q-cycle that's central to energy production.
Practical Takeaway
This rat study suggests hydrogen water may support mitochondrial energy production in the heart, but the findings are preliminary and limited to animal research. More human studies would be needed to determine if these effects translate to people or have practical health benefits. The proposed mechanism is interesting but remains theoretical.
Abstract (excerpt)
Mitochondria are the major source of cellular energy metabolism. In the cardiac cells, mitochondria produce by way of the oxidative phosphorylation more than 90% of the energy supply in the form of ATP, which is utilized in many ATP-dependent processes, like cycling of the contractile proteins…