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Phenylalanine![]() |
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Ingestion of very large quantities of phenylalanine might cause nerve damage.
Individuals with a condition called phenylketonuria (PKU) are unable to break down phenylalanine and must follow a diet that does not contain phenylalanine in order to prevent mental retardation.
A person with kidney or liver disease should not consume large amounts of amino acids without first consulting with his or her physician.
The minimum daily requirement oh phenylalanine (plus tyrosine) for average-size adult (150 pounds) is approximately 950mg.