Incredible Chemical Formula For Soy Lecithin 2023. Web soybean lecithin is mainly composed of phospholipids, which usually have two hydrophobic fatty acyl chains and a polar hydrophilic head group. It’s found in a wide variety of foods, including soy.

Choline is an essential nutrient, and part of the neurotransmitter acetylcholine. Lecithin is a group of chemicals that are related. It’s found in a wide variety of foods, including soy.