Fig. 1: Individual subject plasma L-citrulline and L-arginine concentrations, and Urine NOx/Urine Cr levels.

A Plasma L-citrulline concentrations (μmol/L) of individual subjects collected at baseline and prior to the 12th dose of L-citrulline. B Plasma arginine concentrations (μmol/L) of individual subjects collected at baseline and prior to the 12th dose of L-citrulline. C Urine NOx/Urine Cr levels of individual subjects collected before (baseline) and after the 12th dose of L-citrulline.