Health Benefits and Side Effects of L-Arginine

Taking L-arginine in combination with an omega-3 fatty acid and nucleotides have been explored to reduce recovery time, protect against infection, and promote wound healing after surgery. The supplement in combination with other supplements has also been used to increase lean body mass in people with cancer.
Side Effects
L-arginine can cause a number of side effects including indigestion, nausea, headache, bloating, diarrhea, gout, blood abnormalities, allergies, airway inflammation, worsening of asthma symptoms, decreased insulin sensitivity, and low blood pressure.
Higher doses of L-arginine can increase stomach acid, so it may also worsen heartburn, ulcers, or digestive upset caused by medications. In addition, L-arginine may aggravate symptoms in people with herpes.
L-arginine may interact with certain medications, such as blood pressure medication, diabetes medication, or drugs used to treat erectile dysfunction. If you have diabetes or heart disease, avoid taking L-arginine. Some studies have found that chronic L-arginine supplementation may decrease insulin sensitivity, while others have found no effect or increased insulin sensitivity.
As with many other supplements, L-arginine hasn't been tested for safety in pregnant women, nursing mothers, children, and those with medical conditions or who are taking medications.
The Takeawayr
In most cases, the body maintains an adequate supply of L-arginine on its own. However, severe burns, infections, and injuries can deplete the body's supply of arginine. Under these conditions, it is necessary to ensure proper intake to meet the increased demands.
Due to evolving research on the relationship betwee
L-arginine and heart disease, avoid taking L-arginine supplements unless you have consulted your doctor first about the possible benefits and risks.