May enhance the body’s antioxidant defenses

Antioxidants are chemicals that protect the body from oxidation. This means they minimize the risk of several chronic diseases by reducing oxidative stress. Glutathione is one of the most significant antioxidants in humans. Unlike most antioxidants, glutathione is created by your body rather than being obtained through diet.

Glutathione formation in the body is dependent on the availability of numerous amino acids, including cysteine, which can be scarce at times. As a result, foods high in cysteine, such as whey protein, may improve the body's natural antioxidant defenses. A number of human and rodent studies have found that whey proteins may lower oxidative stress and enhance glutathione levels.