Plasma TAA (A), EAA (C), NEAA (E), and leucine (G) concentrations and total TAA (B), EAA (D), NEAA (F), and leucine (H) responses over time, expressed as iAUC, during the 4-h postprandial period following the ingestion of 25 g protein from mycoprotein (MYCO; n = 12), spirulina (SPIR; n = 12) or chlorella (CHLO; n = 12) and execution of a bout of unilateral-resistance leg exercise in healthy young adults. Time 0 represents the time of protein ingestion. Values are mean ± SD. Plasma concentrations over time were analyzed with two-way repeated-measures ANOVA (time × group), and iAUCs were analyzed with one-way ANOVA. Bonferroni post hoc tests were applied to detect individual differences. Time × group interactions; all P < 0.001. a, significant difference for MYCO compared with SPIR (P < 0.05); b, significant difference for MYCO compared with CHLO (P < 0.05); c, significant difference for SPIR compared with CHLO (P < 0.05). CHLO, chlorella; iAUC, incremental area under the curve; EAA, essential amino acids; MYCO, mycoprotein; NEAA, nonessential amino acids; SPIR, spirulina; TAA, total amino acids.