Single AA plasma concentrations, over time (min) and their iAUC, showed a significantly different response post WPF than PPF 1, 2, or 3 meals. Values are mean ± SD (n = 9). Arrows indicate the ingestion of the meal. Concentration over time data were assessed by 2-way repeated measurements (time × treatment) ANOVA, and iAUC was compared with a 1-way repeated measures (treatment) ANOVA. Significant at p < 0.05 (*), p < 0.01 (**) or p < 0.001 (***). The products’ names above asterisk indicate the treatments in which postprandial AA concentrations significantly differ at that time point. BCAA, branched-chain amino acids; IAA, indispensable amino acids; iAUC, incremental area under the curve; PPF, plant protein fibre; WPF, whey protein fibre.