The impact of protein quality on the promotion of resistance exercise-induced changes in muscle mass

Nutrition & Metabolism

Table 1 PDCAAS and DIAAS scores, the limiting amino acid assessed by the amino acid reference ratio for selected proteins. Values from [47]

Protein source	PDCAAS	DIAAS	Limiting AA
Whey PI	1.00	1.09	His
Whey PC	1.00	0.97	His
Soy PI A	1.00	0.91	Met + Cys
Soy PI B	0.98	0.90	Met + Cys
Pea P	0.89	0.82	Met + Cys
Rice PC	0.42	0.37	Lys

PDCAAS protein digestibility-corrected amino acid score, DIAAS digestible indispensable amino acid score, AA amino acid, PC protein concentrate, PI protein isolate. Values are from reference [47]. Whey protein isolate (Whey PI) 8855, and whey protein concentrate (Whey PC) 392: all from the Fonterra Co-operative Group; soy PI A (Supro 670) and soy PI B (Supro XF) were from Solae; pea PC (Nutralys S85) from Roquette; and rice PC (Oryzatein 90) was from Axiom Foods. Limiting AA – first limiting amino acid when compared to an ideal protein

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