Certain catabolic conditions may necessitate dietary support of arginine. Preterm infants, for example, cannot make arginine internally. Because arginine can help increase nitric oxide production and blood flow and reduce blood pressure, arginine supplements are sometimes recommended for those with hypertension and diabetes as a way to keep arginine levels stable.
Arginine plays a key role in heart health and can be useful in treating angina and circulatory diseases, as well as erectile dysfunction in men. Arginine also helps remove ammonia from the body and enhance immune function. In addition to relaxing blood vessels, arginine can help accelerate wound healing, detoxify the kidneys, maintain hormone balance, and keep the immune system strong.