Fig. 2.
Arterial plasma concentrations of insulin (A), glucagon (B), glucose (C), and total amino acids (D) in subjects ingesting isocaloric meals containing protein and lactose ([15N]WP/[13C]Cas and [13C]WP/[15N]Cas groups; n = 6 and 6, respectively) or lactose alone (lactose group; n = 6). Group × time interactions: P = 1.0 (A), P = 0.0013 (B), P < 0.0001 (C), and P < 0.0001 (D). WP, whey protein; Cas, casein.