The top foods rich in arginine include the liver of the Steller sea lion, low-fat sesame flour seeds, two of the potassium types of soy protein isolate and cottonseed flour. Other foods that are rich in arginine are unsweetened gelatin powder, defatted peanut flour, raw Alaska king crab, morthern lobster and different kinds of shrimp cooked over moist heat. These values are based on a 200 calorie serving.
Arginine is an amino acid, one of the building blocks of protein. It is also one of the amino acids that healthy human beings synthesize naturally, though premature babies can't produce it themselves and need supplementation. Also, people who are in less than optimum health may also need arginine supplementation. Other sources of arginine include dairy products, beef, pork and poultry.
Arginine is needed by the body because it converts to nitric oxide. This chemical allows blood vessels to dilate and contract, which is necessary for a healthy flow of blood. It also helps the body release hormones and helps balance the immune system. It is taken by male wrestlers to improve their stamina and is used with medications during chemotherapy for breast cancer. Arginine is also used to treat wounds and migraine headaches.