L-methionine is an essential amino acid, which means that it cannot be produced by the body and must be obtained through diet or supplementation.
L-Methionine supports the production of the cellular radical scavenger glutathione, and thus aids in natural detoxification processes.
In the body, L-methionine can also be converted to SAM (S-Adenosyl Methionine) a compound that supports healthy joints.
In addition, the human body depends on ingested sulfur-containing amino acids, such as L-methionine, for protein synthesis, as well as biologically active sulfur.