Your body requires 20 different amino acids to build proteins. These proteins are used in the development and repair of muscle, production of enzymes and hormones and to help maintain the structure and function of your body. One of those amino acids is L-arginine. Arginine is a nonessential amino acid, which means that the body can produce it from other essential amino acids in the foods you eat. There are 10 essential and 10 nonessential amino acids needed to keep your body working optimally.
L-Arginine
L-Arginine is synthesized in the body and is a precursor to nitric oxide, a component of collagen, connective tissue, sperm and seminal fluid. In the body, L-arginine is converted to nitric oxide that helps relax the vascular system and reducing blood pressure, according to Dr. Ray Sahelian. Arginine may be helpful in improving renal function in patients and increasing exercise tolerance in people who have stable cardiac disease.
Soy
Soy foods such as soy milk, tofu, edamame and miso are high in arginine levels, according to Memorial Sloan-Kettering Cancer Center. Tofu, also known as soybean curd, is a soft cheese-like food that is made when soy milk is curdled. Edamame, the green soybeans, can be used for snacking or as vegetable dish. Miso is a salty condiment that can be used to flavor dishes. Some manufacturers produce nondairy, soy frozen desserts and soy cheeses high in arginine.
Nuts and Seeds
High-protein nuts and seeds are sources of L-arginine. Walnuts, filberts, pecans, Brazil nuts, sesame and sunflower seeds are all dietary sources of arginine. Other sources include brown rice, raisins, oats, peanuts, almonds, cashews and barley.
Dairy and Chocolate
L-arginine is also found in dairy products, according to MedlinePlus.com. Chocolate is another source of arginine, according to Memorial Sloan-Kettering Cancer Center. Eat plain chocolate to avoid the extra calories and sugar found in cookies and caramels.
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