+Lecithin is a vital fatty substance, naturally found in animal and plant tissues, essential for cell function. It acts as an [Emulsifier](/wiki/emulsifier), helping fats and water mix, important in both biology and food preparation, often sourced from [Soy](/wiki/soy) or sunflower.
+## See also
+- [Lipid](/wiki/lipid)
+- [Cell Membrane](/wiki/cell_membrane)
+- [Food Additive](/wiki/food_additive)