Individual dietary phenylalanine (Phe) tolerance is influenced by many factors:4
Controversy regarding the discontinuation of dietary therapy after 6 years of age (when significant neurodevelopment was thought to be complete) was ongoing until the late 1970s. Studies consistently showed a correlation between diet discontinuation, exposure to elevated Phe and intellectual disabilities, as well as neurocognitive, and psychosocial deficits.5,6-8
It is accepted among many in the healthcare community that dietary management is challenging, adds significant daily burden, and does not ease with advancing age.1,3,10
-Kelly
In combination with a phenylalanine (Phe)-restricted diet, there are pharmacological options which may help reduce blood Phe levels for patients with PKU.
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