Hydrogen Rich Water

**Semantic type:** Pharmacologic Substance

**Definition:** A nutritional supplement composed of molecular hydrogen-rich water (HRW), with potential preventative, antioxidant, anti-inflammatory and radiation protective activities. The molecular hydrogen gas is dissolved in the water. Upon oral administration of HRW, hydrogen is able to efficiently penetrate cytoplasmic membranes and targets intracellular organelles, and, being an antioxidant, scavenges reactive oxygen species (ROS), such as hydroxyl radical and peroxynitrite. This may decrease oxidative stress, prevent cellular damage, reduce inflammatory responses and inhibit apoptosis.

**Synonyms:** - HRW