Now L-Arginine 500 mg, Double Strength, 250 Veggie CapsulesNow LArginine Double Strength provides 500 mg of LArginine per serving in a bottle containing 250 veggie capsules. LArginine is a conditionally essential amino acid that plays a crucial role in urea metabolism and excretion. It is also involved in DNA synthesis and protein production. As a precursor to nitric oxide (NO), LArginine contributes to the dilation of blood vessels, which can support cardiovascular health by reducing blood pressure. This