Choline

Choline is an essential, vitamin-like nutrient that is critical for human health throughout the lifespan. While the body produces small amounts in the liver, it is primarily obtained through diet (found in eggs, beef, and cruciferous vegetables) or supplementation. It serves as a structural component for all cell membranes and is a chemical precursor to acetylcholine, the primary neurotransmitter responsible for memory, mood, and muscle control.