Potential Ghrelin-Mediated Benefits and Risks of Hydrogen Water

Ingestion of water saturated with molecular hydrogen (H2) has been widely studied in Japan recently as an antioxidant strategy. Although H2 has antioxidant potential, the elevations of H2 in blood achieved by ingesting hydrogen water are so modest and transient that it is hard to explain the intriguing effects observed with this water by an antioxidant mechanism. Very recent research in mice has discovered that drinking hydrogen water causes increase production by the stomach of the hormone ghrelin, and that ghrelin is responsible for the favorable effects on hydrogen water on mouse models of Parkinson’s disease. If hydrogen water likewise boosts ghrelin production in humans, it may have important potential for protecting the brain, vascular system, and liver, while aiding the control of inflammatory disorders.

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