Cholesterol. It's been the topic of much debate and controversy for decades. In the 1950s, we learned that cholesterol is bad. Produced in the liver, the waxy, fatty substance clogs our arteries and contributes to heart disease, stroke and other nasty damage. More recently, we were told cholesterol may not be as bad as we once thought. Turns out, every cell in our body contains cholesterol and we actually need it for some pretty important jobs, including: Helping to make key hormones, such as estrogen and testosterone Synthesizing Vitamin D, Building and maintaining vital cell membranes, Helping create substances that help us digest food, To make matters more confusing, there are two major types of cholesterol - serum cholesterol, which is