Which is better, L-citrulline or L-arginine?
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3 min read
While L-arginine is a direct precursor to nitric oxide, recent studies show that supplementing with L-citrulline is more effective at raising blood arginine levels than taking L-arginine directly. This superior bioavailability is the main reason many fitness and health experts favor L-citrulline over L-arginine for consistent results.