What is the primary role of choline in the body?

Choline plays a crucial role in supporting cellular membrane integrity due to its function as a building block for phospholipids, which are essential components of cell membranes. It contributes to the structure of phosphatidylcholine and sphingomyelin, both of which are vital for maintaining the stability and functionality of cell membranes.

Additionally, choline is involved in the synthesis of acetylcholine, a neurotransmitter important for muscle control and various other neuronal functions. While it has several important roles, its direct contribution to the structural integrity of cellular membranes is what fundamentally highlights its primary function in the body, making it essential for cellular health and overall physiological processes.