from The American Heritage® Dictionary of the English Language, 4th Edition
- n. An essential amino acid, C9H11NO2, that occurs as a constituent of many proteins and is normally converted to tyrosine in the human body. It is necessary for growth in infants and for nitrogen equilibrium in adults.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. An essential amino acid C9H11NO2 found in most animal proteins; it is essential for growth; the inability to metabolize it leads to phenylketonuria; it is a constituent of aspartame.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. an essential amino acid found in proteins and needed for growth of children and for protein metabolism in children and adults; abundant in milk and eggs; it is normally converted to tyrosine in the human body
PKU is described by scientists as an autosomal recessive genetic disease that is characterized by a deficiency in an enzyme called phenylalanine hydroxylase (PAH).
It helps synthesize the body from the phenylalanine which is another type of amino acid.
- Amino acid deficiency - Amino acids such as phenylalanine, tyrosine and tryptophan provide the basis for the body's production of important neuro-transmitters in the body.
The investigators found that the bypass patients had much lower levels of amino acids known as branched-chain amino acids, and the amino acids phenylalanine and tyrosine.
And in fact there is a ‘vaccine’ — or more accurately, a treatment (low-phenylalanine diets) — that eliminates this retardation.
One of the reasons for this side effect, researchers have discovered, is because the phenylalanine in aspartame dissociates from the ester bond.
You see, I don't do sugarless, and in particular aspartame, phenylalanine and all that other junk.
Contains phenylalanine, an amino acid that helps relay signals from one brain cell to another.
If you must use caffeine, you might want to look into a caffeine source that includes phenylalanine assuming you are not sensitive.
Wow Steve, I would seriously rethink your suggestion on Nutra- sweet/ Equal / phenylalanine.
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