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Phenylketonuria

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Introduction
Phenylketonuria (PKU) is a rare genetic condition that is present from birth. The body is unable to break down a substance called phenylalanine, which builds up in the blood and brain.
Symptoms of phenylketonuria
Most babies with phenylketonuria (PKU) appear healthy at birth. Symptoms usually only develop due to complications that arise if the condition is not treated
Causes of phenylketonuria
Phenylketonuria (PKU) is a genetic condition that is passed to a baby by its parents.
Diagnosing phenylketonuria
Phenylketonuria (PKU) is diagnosed in newborn babies after a routine blood test.
Treating phenylketonuria
Phenylketonuria (PKU) can be successfully treated with a low-protein diet and dietary supplements.