Phosphatidylcholine is a phospholipid that is available in plants and animals. It occupies almost 50 percent of the total building blocks of the membrane bilayer. It is an important phospholipid component of high-density lipoprotein. It is also called lecithin.
Phosphatidylcholine is recognized as an essential phospholipid due to its contribution in forming the structure surrounding the cell. It plays a crucial role in fat metabolism, cell structure maintenance, liver health, nerve signaling, and as a precursor for neurotransmitters and memory. Its levels are highest in the brain cells of a newborn and gradually decrease with age. The gradual decline can be reversed by the use of a diet rich in phosphatidylcholine or by taking phosphatidylcholine supplements.