Choline and L-Phenylalanine share a similar role in the brain function. They collaborate as precursors for the production of several very important neurotransmitters. Neurotransmitters control the basic process of impulse transmissions between brain cells. They are reponsible for an elevated and positive mood, alertness, and ambition. A lack of them can cause many brain disorders.

A sufficient supply of choline and potassium (aspartate) in the presence of aceitc acid produces acetylcholine. it is necessary for the correct functioning of the nervous system as well as for proper brain function.