<unk>  <unk>  is a rare condition in which a baby is born without the ability to properly break down an amino acid called phenylalanine.
Phenylketonuria
Homocystinuria
Alkaptonuria
3-Methylglutaconic aciduria
Mevalonic aciduria
Tyrosinemia
Methylmalonic acidemia
Familial hyperchylomicronemia