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
The RDA prevents deficiency. The effective range is what clinical trials used to actually move the outcome.
Effective
2000–6000
mg
Common supplemental range for cardiovascular and exercise performance benefits. Doses up to 9 g/day have been used in clinical studies.
Clinical evidence
Moderate clinical evidence. Multiple trials on nitric oxide production and blood flow, but oral bioavailability is limited
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