As an important antioxidant in the body, glutathione can scavenge free radicals in the human body; Because GSH itself is susceptible to oxidation by certain substances, it can protect the sulfhydryl groups in many proteins and enzymes from being oxidized by harmful substances in the body, so as to ensure the normal physiological functions of proteins and enzymes. There is a lot of glutathione in human red blood cells, which is of great significance to protect the sulfhydryl groups of proteins on the red blood cell membrane in a reduced state and prevent hemolysis.