PHENYLALANINE HAS BEEN FOUND TO HAVE REMARKABLE THERAPEUTIC PROPERTIES AND WHICH ITSELF GIVES RISE TO SYNTHESIS OF OTHER AMINO ACIDS. DEFICIENCY OF PHENYLALANINE LEADS TO VARIETY OF SYMPTOMS VIZ. BLOOD SHOT EYES, CATARACT AND MANY BEHAVIOURAL CHANGES.
PHENYLALANINE RELIEVES PAIN AND DEPRESSION AND HAS A EUPHORIANT QUALITY BECAUSE IT PREVENTS THE DESTRUCTION OF ENDORPINE AND
ENKEPHALINS, THE BRAINS OWN NATURAL MORPHINE. ONE OF ITS OTHER ROLES IS THE CONTROL OF APPETITE. PHENYLALANINE
AND TRYPTOPHAN TEND TO TRIGGER CHOLECYSTOKININ (CCK), WHICH IS THOUGHT TO INDUCE SATIETY AND TERMINATION OF EATING. HENCE, IT IS EMPLOYED AS AN APPETITE
SUPPRESSANT IN OBESITY.