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. 2017 May 8;4:13. doi: 10.3389/fnut.2017.00013

Table 2.

Leucine amino acid reference ratio (AARR) for selected isolated proteins.

Protein Leucine AARR
Milk protein concentrate 1.77
Whey protein isolate 2.57
Whey protein concentrate 1.93
Soy protein concentrate 1.29
Pea protein concentrate 1.37
Rice protein concentrate 1.11

Values from Ref. (26).