Nonstick spray is a cooking spray made from oil, water, and lecithin. It is commonly known by the brand name PAM, which is a three-letter acronym for 'Product of Arthur Meyerhoff'. Nonstick spray is used to coat pans and other cookware to prevent food from sticking to the surface. It is also used to grease baking sheets and cake pans. Nonstick spray is a convenient and easy way to reduce the amount of fat and calories in cooking.