A new study, released recently in the International Journal of Sports Medicine, reaffirms something I've known for some time: L-arginine improves the physical fitness of heart-failure patients by ...

Amino acid supplements have soared in popularity in recent years. Social-media influencers peddle them with promises that ...

Arginine — also called L-arginine — is an amino acid (organic compound that make proteins) that your body naturally makes. Amino acids are the building blocks of protein, which is why low ...

L-arginine is an amino acid that may help promote blood flow, athletic performance, and wound healing, among other benefits. But taking L-arginine supplements may interact with certain medications.

That’s why, in certain situations, people may take arginine supplements to meet their bodies’ needs. Additionally, certain amino acids, including glycine and arginine, are considered ...