🍉 Amino acids · Moderate evidence
L-Citrulline
Nitric oxide · blood flow · athletic performance · ED. People take it for:
- Nitric oxide production
- Athletic endurance and power
- Blood pressure reduction
- Erectile dysfunction support
- Muscle recovery
- Cardiovascular health
Why it works
L-Citrulline converts to arginine in the kidneys more efficiently than arginine itself, boosting nitric oxide production. Used for athletic performance, cardiovascular health, and erectile dysfunction.
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How to take L-Citrulline
Best time to take
30–60 minutes before exercise; or morning for cardiovascular benefit
Suggested dose
3–6g L-citrulline or 6–8g citrulline malate
Side effects and risks
- Generally very safe
- May cause mild GI upset at high doses
- May lower blood pressure significantly — monitor
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Medical disclaimer: Nothing on Stack Ritual constitutes medical advice. The information provided is for educational purposes only. Always consult your doctor or a qualified healthcare provider before beginning, changing, or stopping any vitamin, supplement, or wellness regimen.