By the way, doctor: Is it okay for me to take L-arginine?
L-arginine produces nitric oxide, a gas that helps relax and widen small blood vessels. Small, preliminary studies have suggested that the nitric oxide from L-arginine supplements might help conditions related to narrow blood vessels and low blood flow, such as angina, erectile dysfunction, heart failure, and peripheral artery disease (the narrowing of the arteries in the legs). So, theoretically, it might be helpful to someone like you. But hints and theories don't add up to proof. Most experts don't recommend routine use of L-arginine.
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