Sugar-loving mouth bacteria create acids that damage teeth, but arginine can help fight back. In a clinical trial, arginine-treated dental plaque stayed less acidic, became structurally less harmful, ...

MIT scientists have identified cysteine — an amino acid found in foods like meat, dairy, beans, and nuts — as a potent trigger for intestinal repair. In mice, a cysteine-rich diet activated immune ...

Of the 20 amino acids the human body needs to function, nine are actually essential. Of those nine, three are branched-chain amino acids (BCAAs). Leucine is both an essential amino acid and a BCAA.