Acetylcholine is the primary neurotransmitter involved with thought, learning, and memory. It sharpens our concentration and perception. For its manufacture, we need choline, a component of lecithin, known popularly as a "nerve food." A lack of choline can produce a decrease in memory. Some foods that contain choline are liver, egg yolk, as well as cheese, nuts, oatmeal, and soybeans. Drugs and medications can interfere with the manufacture and effectiveness of acetylcholine. It is thought that Alzheimer's disease, which is characterized by severe disturbances in brain function, may be linked to a lack of acetylcholine.
Useful sources of building blocks for acetylcholine: