The properties of Phenylalanine
Phenylalanine is an essential amino acid that suppresses your appetite by stimulating the release of cholecystokinin, an intestinal hormone. Once released, cholecystokinin sends a signal to your brain to feel satiated after eating. By helping you feel more full, phenylalanine can effectively prevent overeating.
Phenylalanine is a precursor for tyrosine, the monoamine neurotransmitters dopamine, norepinephrine (noradrenaline), and epinephrine (adrenaline), and the skin pigment melanin.