21st Century, L-Arginine, 1000 mg, 100 Tablets

21st Century L-Arginine provides 1000 mg of L-arginine per tablet. L-arginine is a semi-essential amino acid that serves as a precursor to nitric oxide, a molecule that helps dilate blood vessels. It plays roles in protein synthesis, wound healing, and immune function. This supplement comes in 100 tablets. Arginine is involved in the urea cycle, which helps remove ammonia from the body, and is naturally found in protein-rich foods like meat, poultry, fish, and dairy products.