Table 1.

Plasma l-arginine area under the curve (AUC) after 1 week of different l-citrulline and l-arginine dosing regiments [6].

Compound	Dose (mg) × Number of Daily Administrations	Plasma [arginine] AUC (μmol·h·L−1) ± SEM
l-citrulline	750 × 2	271 ± 38
lL-citrulline	1500 × 2	421 ± 65
lL-citrulline	3000 × 2	898 ± 67
lL-arginine slow release	1600 × 2	289 ± 50
lL-arginine immediate release	1000 × 3	283 ± 51