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Table 13 Predicted amount of Phe tolerated during early pregnancy according to blood Phe concentration on an unrestricted diet (modified from Maillot et al. 2007 [333])

From: The complete European guidelines on phenylketonuria: diagnosis and treatment

Blood Phe concentration (μmol/L) Initial amount of daily Phe to give at the start of dietary treatment mg/day
>2000 150
1600–2000 200
1200–1600 300
1000–1200 300