For example, studies investigating the effects of L-arginine on blood pressure have used doses of 6–30 grams per day for 2–24 weeks (22, 23 ). In those with erectile dysfunction, research has suggested that supplementing daily with 1.5–5 grams of L-arginine may significantly improve symptoms ( 15 , 22).
Is 5 grams of L-arginine sufficient for ED?
Taking 5 grams of L-arginine by mouth daily seems to improve sexual function in men with ED. Taking lower doses might not be effective. However, there is some early evidence that taking L-arginine with maritime pine bark extract and other ingredients, might improve the effectiveness of low-dose L-arginine for ED.
How many grams of L-arginine should I take?
There is no standard dose of arginine. Studies have used different amounts for different conditions. One common dosage is 2 to 3 grams three times a day, although lower and higher doses have also been studied.
Can you have too much L-arginine?
Although L-arginine is considered safe in moderate doses, too much L-arginine can have severe side effects, including death. It is important to understand how the supplement may interact with the body and with additional medications before taking it.
Is 500 mg/l-arginine safe?
L-arginine is considered to be generally safe. It might be effective at lowering blood pressure, reducing the symptoms of angina and PAD , and treating erectile dysfunction due to a physical cause. However, if you take a blood pressure drug, talk to your doctor before using L-arginine.