BioStacksWhy Arginine for Heart
Arginine plays a supporting role in heart. L-Arginine is a conditionally essential amino acid and a precursor to nitric oxide (NO), which supports vasodilation and blood flow. Used for cardiovascular support, exercise performance, and recovery.
What dose to look for
Clinical studies typically use 2000–6000 mg of arginine. Common supplemental range for cardiovascular and exercise performance benefits. Doses up to 9 g/day have been used in clinical studies. Supplements that fall short of this threshold are unlikely to match what clinical trials achieved.
The evidence behind arginine
Research supporting arginine for heart is rated as moderate. Multiple trials on nitric oxide production and blood flow, but oral bioavailability is limited Learn more
