Dr. Mercola L−Arginine 120 Caps.

L-arginine is an amino acid that is naturally found in red meats, poultry, fish, and dairy products. It is necessary to produce proteins and is commonly used for circulation. L-arginine is converted in the body into a chemical called nitric oxide.

Like other bodily functions, the efficiency of nitric oxide signaling decreases as a normal part of aging. Endothelial cells produce nitric oxide to help blood vessels remain relaxed and open to blood flow.

As the efficiency to produce nitric oxide decreases, the body might need some help to maintain optimal blood flow. L-arginine is a precursor of nitric oxide that the lining of the vessels (endothelium) needs to create nitric oxide.

A semi-essential amino acid called L-arginine seems to be the core of cardiovascular health support.

Allow me to quickly summarize the possible benefits of L-arginine...

Helps blood vessels relax to promote optimal blood flow in the body

Helps maintain healthy blood pressure levels that are already within the normal range

Promotes healthy breathing

Provides support to your immune system

Improves your tolerance to exercise

Promotes the overall vitality of your cardiovascular system

But one of the biggest challenges with L-arginine is its absorption rate.