INTRODUCTION CHOLESTEROL What is Cholesterol? Cholesterol is a white soft, fat-like, waxy substance found in the bloodstream and in all cells of our body. It occurs naturally in every cell or membrane everywhere in the body, including the brain, nerves, muscles, skin, liver, intestines, and heart. Cholesterol is an essential part of a healthy body and the body uses it to produce cell membranes, several important hormones (e.g. testosterone, progesterone,...