• Citrulline is a non-essential amino acid, but its usefulness for athletes is quite remarkable.
  

This amino acid is a precursor to arginine, but appears to be much better absorbed by the intestines than arginine itself.

It significantly increases vasodilation by stimulating nitric oxide production.

Supplementation with Citrulline has been shown to increase performance, reduce the feeling of fatigue during exercise, and may stimulate protein synthesis.

Furthermore, chronic consumption of Citrulline can lower blood pressure and thus promote better circulatory system health.