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Since phenylalanine converts to L-tyrosine, this could lead to low levels ... does not regulate dietary supplements the way ...

Aspartame provides significantly lower amounts of phenylalanine than everyday food sources, such as meat, fish, eggs, and dairy products. People with PKU need to monitor all dietary sources of ...

IN view of the increasing importance of anhydro-N-carboxyamino-acids for the synthesis of polypeptides 1,2, it is pertinent to report the following simple preparation of compounds of this type.

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Dancis, J., and Balis, M. E., Pediatrics, 15, 63 (1955).

Levodopa is derived from the amino acid tyrosine. Related: Which Foods Are Actually 'Healthy'? The FDA Will Now Tell You “The body naturally can make tyrosine from [another amino acid] phenylalanine, ...

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Dopamine is produced from the amino acids tyrosine and phenylalanine ... Carefully follow the dosage recommendations on the product label. Velvet beans are natural sources of L-dopa, a precursor ...