What It Is
L-arginine is an amino acid found in meat, fish, dairy, nuts and seeds. The body also makes some itself.
The Nitric Oxide Link
Cells use arginine to make nitric oxide, a gas that helps the smooth muscle in blood vessel walls relax. That is the basis for the interest in arginine supplements.
What Research Shows
Small trials report modest changes in blood pressure or blood flow in some groups, while others find little effect. Doses, forms and participants differ a lot.
Cautions
It may lower blood pressure, upset the stomach, and is generally not advised after a recent heart attack. Ask a doctor if you take blood pressure medicine, nitrates or erectile dysfunction drugs.
In Melonex
Two arginine forms are listed, L-arginine AKG and L-arginine HCL. The amount of each is not published.
Key Takeaways
- L-arginine is an amino acid the body uses to make nitric oxide. Studies on blood pressure are mixed, and it may lower pressure further in people on medicine.
- Always follow the label and ask a professional if unsure.
- Results vary and no supplement replaces healthy habits.
Learn more on our ingredients page or read the honest review.
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