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

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

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
  1. 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