L-arginine: Benefits, Dosage, Side Effects, and More

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.L-arginine is an amino acid, which is a building block of protein. It’s necessary for the production of nitric oxide, a signaling molecule that’s needed for a variety of bodily processes and functions, including blood flow regulation, mitochondrial function, and cellular communication.Additionally, L-arginine acts as a precursor to other amino acids, including glutamate, proline, and creatine, and is essential for the health and functioning of your immune system.L-arginine is produced in several ways. It can be synthesized from the amino acid citrulline through the breakdown of body proteins or obtained through dietary protein intake from foods like meat, poultry, dairy, nuts, fish, and soy products. It’s also available as a supplement in various forms, such as powder, liquid, capsule, and ta...