Lecithin is a natural substance found in many foods, especially in soybeans, egg yolks, and sunflower seeds. It is a type of fat known as a phospholipid, which helps to keep cells healthy and functioning properly. Lecithin is often used as an emulsifier in cooking, helping to blend ingredients that usually don’t mix well, like oil and water. In addition to its culinary uses, lecithin is also popular as a dietary supplement. Many people take it for its potential health benefits, which may include supporting brain function and improving cholesterol levels. Overall, lecithin plays an important role in both our diets and our bodies.