Abstract: An instrument for producing hydrogen-dissolved liquid comprises a hydrogen generating system stored in a separator, and the hydrogen generating system comprises: a hydrogen generating agent that reacts with raw water to generate hydrogen; a metal-ion sequestering agent that sequesters metal ions dissolved from the hydrogen generating agent; and a pH adjusting agent.

Abstract: Hydrogen gas is added into living organism applicable fluid substantially without changing constituents of the living organism applicable fluid by reacting a hydrogen generating system and a generating-purpose water, wherein the hydrogen generating system contains metal aluminum, which is a food additive, as a hydrogen generating agent and calcium oxide or calcium hydroxide, which is also a food additive, as a hydrogen generating reaction accelerator such that the hydrogen generating agent and the hydrogen generating reaction accelerator are adjacent to each other.