Table 1.

PDCAAS and DIAAS scores for selected isolated proteins and foods.

Food	PDCAAS	DIAAS	Limiting AA
MPCa	1.00	1.18	Met + Cys
WPIa	1.00	1.09	Val
SPIa	0.98	0.90	Met + Cys
PPCa	0.89	0.82	Met + Cys
RPCa	0.42	0.37	Lys
Whole milkb	1.00	1.43	Met + Cys
Cooked peasa	0.58	0.82	Met + Cys
Cooked ricea	0.62	0.59	Lys
Almondse	0.35	0.40	Lys
Chickpeasf	0.52	0.67	Trp
Tofuc,d	0.70	0.97	Met + Cys
Corn-based cereala	0.08	0.01	Lys
Hydrolyzed collageng	0.0	0.0	Trp

PDCAAS, protein digestibility-corrected amino acid score; DIAAS, digestible indispensable amino acid score for adolescents and adults; MPC, milk protein concentrate; WPI, whey protein isolate; SPI, soy protein isolate; PPC, pea protein concentrate; RPC, rice protein concentrate.

^aValues from Ref. (26).

^bValues from Refs. (24, 117).

^cValues for PDCAAS from Ref. (118).

^dValues for DIAAS from Ref. (119).

^eValues from Ref. (120).

^fValues from Ref. (121).

^gHydrolyzed collagen has a PDCAAS and DIAAS score of 0 since it contains no tryptophan (Trp) and is very low in methionine (27).