L - P H E N I L A L A N I N E

Phenylalanine is an essential amino acid.  Once inside the body, it can be converted into another amino acid, tyrosine, it's precursor.  This in turn is used to synthesize two key neurotransmitters that promote alertness: dopamine and norepinephrine (NE).  This means it carries messages from one cell in the brain to another, inadequate supplies of phenylalanine will result in inadequate supplies of norepinephrine. 

Phenylalanine has similar positive weight loss benefits as the drug known as Fhen Fhen (fenluramine), since they both work with NE stimulation, but without all the negative side effects.  Since NE is related to our clarity of thought, memory, and positive feelings of  "being in control", a lack of NE will destroy alertness and lead us to depression.

To also aid in weight loss, L-Phenylalanine supplementation also causes  the release of cholecystokinin (CCK) hormone from the cerebral cortex.  This brain hormone acts on the hypothalamus in the brain to suppress appetite: a definite need  for many dieters.    One does not immediately lose interest in food, the cravings for food disappear and the urges to eat are more easily controlled.  When food is eaten, one's appetite is more easily satisfied , especially since food entering the duodenum from the stomach, triggers a further release of CCK hormone.  In short overeating ceases to be a problem.

Supplemental doses for L-Phenylalanine are available in 500 mg capsules, it is recommended to be taken on an empty stomach approximately one hour before meals. Vitamins C and B6 are synergistic nutrients required to convert phenylalanine to NE.

Is supplemental L-Phenylalanine safe? 
Persons with chronically high blood pressure, high doses could cause further elevation of blood pressure.  Just what is considered "high dosage" is unclear at this time. If this is the case then the amino acid L-Tyrosine would be a better choice, since it does not affect blood pressure, and may even lower blood pressure in some.  Not be taken by pregnant or lactating women or by people who suffer from anxiety attacks, diabetes or people with phenylketonuria (PKU), or pre-existing pigmented melanoma, (skin cancer). For healthy individuals, there appears to be no danger.