Glutathione

Glutathione (GSH) is a tripeptide. It contains an unusual peptide linkage between the amine group of cysteine and the carboxyl group of the glutamate side chain. Glutathione, an antioxidant, protects cells from toxins such as free radicals.

Supplementing has been difficult, as research suggests that glutathione taken orally is not well absorbed across the GI tract. In a study of acute oral administration of a very large dose (3 grams) of oral glutathione, Witschi and coworkers found that "it is not possible to increase circulating glutathione to a clinically beneficial extent by the oral administration of a single dose of 3 g of glutathione."

However, tissue and serum glutathione concentrations can be raised by increased intake of the precursor cysteine. Glutathione precursors rich in cysteine include Acetylcysteine undenatured whey protein and N-acetyl-cysteine


Wikipedia

Antioxidants

Antioxidants are molecules that slow or prevent the oxidation of other substances. Oxidation, which is present in many biological process, can produce free radicals, which can damage cells in the body.

There are many antioxidants that we can take, including glutathione, Vitamin C (ascorbic acid), melatonin and vitamin E. Most antioxidants can be taken from supplements or by consuming more fruits and vegetables in the diet.