Phenylalanine, L-Phenylalanine, DL-Phenylalanine
Phenylalanine is a precursor of tyrosine
Phenylalanine is metabolized in the liver with phenylalanine hydroxylase
Phenylalanine is a precursor of phenylthylamine (brain neurotransmitter)
phenylthylamine is found in chocolate
L-Phenylalanine is the form used in living organisms
D-Phenylalanine is synthetic and can only be converted into phenylethylamine
DL-phenylalanine is a combination of both D and L forms
DL-phenylalanine has analgesic and antidepressant effects
L-phenylalanine is a precursor of brain neurotransmitters
phenylketonuria (PKU) is a deficiency of phenylalanine hydroxylase
phenylalanine -> tyrosine -> L-dopa -> dopamine -> NE -> EPI
precursor of brain neurotransmitters
RDA - 1 g qd
cottage cheese, chicken, cheddar cheese
depression and diminished growth
depression, chronic pain, Parkinson's
may cause anxiety, jitteriness and hyperactivity in children
may cause migraines and hypertension due to tyramine sensitivity
Interactions tyramine containing foods may potentiate effects
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