L-arginine is available in several forms, including capsules, tablets, and powders. Some supplements contain l-arginine alone, while others combine it with other amino acids or ingredients like ...

Because nitric oxide relaxes blood vessels, researchers hoped L-arginine supplements might help people with heart and circulatory problems. They have done many studies with L-arginine, but the ...

Medically reviewed by Matthew Wosnitzer, MD Ads for supplements claiming to treat erectile dysfunction (ED) are not hard to ...

OFTEN, NITRIC OXIDE supplements don’t actually contain nitric oxide; they just contain its precursors: L-arginine and ...