I've read that if you have had a heart attack, taking L-Arginine supplements will increase your chances of having and dying from another heart attack. But what about people who have not yet had a heart attack, but have the precursors of a heart attack, such as high cholesterol, hardening of the arteries, high blood pressure, etc.? Does supplementing with L-Arginine increase their risk also?
To answer Scottsdalehigh64's question, I've read on several websites that L-Arginine supplementation helps with circulation problems, which I think I have. Also, as you mentioned, I do eat well, exercise, etc.