Margarine

A butter substitute made from a variety of different vegetable and other oils. The process of hydrogenation (used to make the margarine hard and spreadable) causes the margarine to produce trans-fatty acids in the body. These acids are known to cause a slew of problems: elevated cholestorol, hardening of the arteries, even cancer. Some margarines contain whey, and thus, are not dairy-free or lactose-free.