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. Author manuscript; available in PMC: 2018 Jun 1.
Published in final edited form as: Mol Genet Metab. 2017 Apr 6;121(2):96–103. doi: 10.1016/j.ymgme.2017.04.003

Table 2.

Intake of amino acids in subjects with PKU consuming a low-Phe diet in combination with AA-MF and GMP-MF.

Medical Foods (g/day) Natural Foods (g/day) Whole Diet (g/day)
AA-MF GMP-MF p AA-MF GMP-MF p AA-MF GMP-MF p

Phenylalanine 0.00 ± 0.00 0.09 ± 0.01 <0.001 1.06 ± 0.20 1.19 ± 0.22 0.443 1.06 ± 0.20 1.29 ± 0.22   0.191
Tryptophan 1.28 ± 0.10 0.81 ± 0.04 <0.001 0.39 ± 0.18 0.41 ± 0.14 0.811 1.67 ± 0.18 1.22 ± 0.14 <0.001
Tyrosine 6.06 ± 0.39 4.18 ± 0.36 <0.001 1.14 ± 0.55 1.22 ± 0.43 0.725 7.20 ± 0.55 5.39 ± 0.51 <0.001
LNAA 28.6 ± 1.84 31.1 ± 1.87   0.244 7.33 ± 2.14 8.35 ± 1.90 0.445 35.9 ± 2.19 39.4 ± 2.05   0.126
 Isoleucine 3.71 ± 0.26 3.89 ± 0.22   0.543 0.97 ± 0.24 1.13 ± 0.23 0.366 4.68 ± 0.27 5.02 ± 0.22   0.281
 Leucine 6.60 ± 0.45 10.8 ± 0.63 <0.001 1.69 ± 0.37 2.04 ± 0.40 0.297 8.29 ± 0.41 12.8 ± 0.57 <0.001
 Threonine 3.24 ± 0.26 5.95 ± 0.36 <0.001 0.86 ± 0.21 0.99 ± 0.19 0.387 4.09 ± 0.29 6.95 ± 0.32 <0.001

Values are mean ± SEM based on 3-d food record, n=18. Large neural amino acids (LNAA) include Tyr, Trp, Leu, Ile, Val, His, Met and Thr. AA medical foods (AA-MF), GMP medical foods (GMP-MF). Natural foods are defined as all foods and beverages that are not medical foods.