Cholesterol levels are a way of measuring the concentration of cholesterol in the blood. It is often called fat levels, although cholesterol is not really a fat. Fat is found in the tiny droplets that transport cholesterol through the blood. Depending on the type of transport molecule, doctors differentiate between HDL, LDL and VLDL cholesterol. The total level of cholesterol, measured in milligrams per decilitre (mg/dl), combines the individual values of all these types of cholesterol.
