About Arginine
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. Generally well tolerated; may cause GI discomfort at high doses. No established RDA/UL.
What Arginine supports
- Supports nitric oxide production and healthy blood flow
- May enhance exercise performance and recovery
- Supports healthy blood pressure within normal range
How much Arginine to take
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.
- Effective range
- 2000–6000 mg
Clinical evidence
Moderate clinical evidence. Multiple trials on nitric oxide production and blood flow, but oral bioavailability is limited
Examine.com