FAQs

Yes. Hydrogen gas has been shown to be very safe for both humans and animals at much higher concentrations than what is being used for therapy. In addition, hydrogen gas is natural to the body because our gut bacteria can daily produce liters of H₂ after a fiber-rich meal. Thus, hydrogen gas is a vital component that is already active inside our bodies. Individuals with concerns or specific health conditions should consult their healthcare provider, pediatrician, or veterinarian before use.

Yes, hydrogen water is generally considered safe for daily consumption. The U.S. Food and Drug Administration (FDA) has classified it as "generally recognized as safe" (GRAS). No major side effects have been reported in clinical trials. Any excess hydrogen is naturally exhaled from the body.

No. Hydrogen gas dissolved in water is not chemically bound in a way that creates an explosive mixture. As far as acidity, H₂ gas is a pure neutral gas, which means it cannot make water acidic or change its pH level. There are water ionizers that can infuse hydrogen gas into water and keep it pH neutral or produce alkaline levels of 7.5 pH to 9.5 pH. However, some hydrogen tablets we tested can lower pH by an average of two integers. So, if source water is (1) a neutral 7.0 pH or (2) a slightly acidic 6.0 pH, those tablets can lower these waters to an acidic 5.0 pH or to an even more acidic 4.0 pH. For most healthy people, their stomach and intestines can easily process a few glasses of acidic water.

Optimal intake varies by individual. Many studies use a range of 1 to 3 liters (33.8 to 101.4 ounces) per day. It is best to start with a smaller amount, such as 1 to 2 eight-ounce glasses, and adjust or increase based on how your unique body responds.

In 1798, hydrogen gas was discovered to treat a few conditions, like inflammation. In 1975, a landmark study highlighted molecular hydrogen's benefits. This study was led by Dole and colleagues from Baylor University/Texas A&M and published in Science magazine. They demonstrated that hyperbaric hydrogen gas (H₂) significantly reduced skin tumors. This established H₂ as a potential therapeutic agent against oxidative stress and cancer. In 2007, it became a popular topic among scientists when a paper about hydrogen’s benefits was published in the prestigious journal Nature Medicine by Dr. Ohta’s group. This 2007 milestone led to a surge in the following years that produced thousands of scientific studies, papers, reviews, and articles showing hundreds of potential therapeutic benefits in 200+ disease models.

Yes and no. Yes, it does immediately start coming out of the water. But no, not all of the H₂ immediately dissipates. Depending on surface area, temperature, agitation, stirring, etc., hydrogen gas can stay in water for a few hours before it drops below a therapeutic level. This is like a carbonated soda left open, containing carbon dioxide (CO₂) gas that escapes to reach equilibrium with other gases in the air. So, it is best to drink hydrogen water sooner rather than later, before it goes “flat” with little to no H₂ remaining.

Most people say no. This is because molecular hydrogen is an odorless and tasteless gas. Hydrogen water tastes just like regular purified water, although some people notice a subtle "lighter" taste with no feeling of stomach bloating or nausea.

No. Hydrogen water is about the concentration of dissolved gas and not the pH level. Depending on the source water, it can be acidic, pH neutral, or even alkaline. By itself, alkaline water has a higher pH due to having dissolved minerals that form a small amount of mild electrolytes. Each one offers different properties and potentially separate and/or complementary benefits.

Yes, hydrogen-rich water may aid people who have concerns about their weight. Studies suggest that it can (1) improve lipid profiles, (2) reduce body fat percentage, and (3) enhance metabolic activities like insulin sensitivity. But it should be combined with a balanced diet and regular, age-appropriate exercise or movement for optimum results.