What is Lecithin?

Lecithin is a group of compounds called phospholipids, which are important to parts of our brain, blood, nerves, and other tissues. They also make up cell membranes.
Our bodies utilize lecithin in metabolic processes and facilitate the production of the neurotransmitter acetylcholine.
You can get lecithin from food sources like eggs, soybeans, sunflower seeds, and peanuts, but it also comes in the form of capsules and liquid that you can get from many other supplements.
Source: University of Rochester Medical Center