Cholesterol is a waxy, fat-like material that is found in various parts of the body. It comes from two sources -- the liver produces it, and we consume it in animal products, particularly meat and dairy products.
Reviewed last on: 5/2/2009
David C. Dugdale, III, MD, Professor of Medicine, Division of General Medicine, Department of Medicine, University of Washington School of Medicine. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.