The dose-response relationship of hydrogen is an important issue and there is no clear answer. If a specific answer must be given, only some references and suggestions can be provided. For example, the standard proposed by the International Hydrogen Medical Standards Committee is the amount of hydrogen to be replenished in drinking hydrogen water, with a hydrogen concentration of no less than 0.5 ppm, and at least 0.5 milligrams of hydrogen to be replenished per person per day.

For example, if the concentration of hydrogen water is 2ppm, you only need to drink 500 milliliters of hydrogen water per day. If it is 1ppm, you need 1000 milliliters. Inhale hydrogen gas for more than an hour as much as possible, so that various organs in the body can dissolve the maximum amount of hydrogen gas and exert its effects. Hydrogen is not toxic, and if you want to fully exert its effects, multiple methods (hydrogen absorption, drinking hydrogen water, hydrogen bath) should be used in combination.

People can absorb hydrogen gas by drinking water containing hydrogen gas, taking hydrogenated foods orally, inhaling hydrogen gas, soaking in hydrogen water baths, and other methods. Hydrogen gas can be absorbed through the digestive tract, respiratory system, and skin. Each pathway corresponds to a different type of disease, and of course, the effect would be better if applied simultaneously.