Citrulline can increase arginine availability, but performance findings are mixed and product doses vary.

Supplements - More performance products

Citrulline and “pump” claims

Last reviewed 3 August 2026. How we write this.

Citrulline can increase arginine availability, but performance findings are mixed and product doses vary.

A plausible nitric-oxide mechanism is not the same as a reliable improvement in lifting, endurance or recovery. Check the actual citrulline amount rather than blend weight.

Educational content only. This does not diagnose, treat or replace individual advice from an appropriately qualified clinician.

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Educational content only. Not medical advice, diagnosis or treatment. Always consult a qualified healthcare professional before changing your health regimen.