Phosphatidylcholine (PC) is an important phospholipid constituent in the lipid bilayer cell membrane of all cells. PC plays a crucial role in the formation and structural integrity of these cell membranes, with far-reaching consequences for the health of the body.* PC can also serve as a source of choline for the production of acetylcholine, a neurotransmitter that is essential for normal brain, memory and mood functions.* PC is considered essential for normal brain development of the fetus.* PC also plays an especially important role in the liver, where, as a key component of liver cell membranes, it has been shown to support normal liver function.*