Blood Fats Fat is a source of energy. It carries some vitamins around the body. It is used to make hormones and cell membranes, to protect organs and to lubricate some moving body parts. However, too much fat in the blood increases the risk of heart disease or pancreatitis. Triglycerides are the most common form of fat in the body.
Cholesterol is another form of fat.
In order for fats to be carried in the blood, they are wrapped in protein molecules. These bundles of protein-wrapped fat are called lipoproteins. Lipoproteins come in different sizes. These molecules carry fats from the liver to other parts of the body. Too much LDL or VLDL can cause fat to build up on the walls of your arteries.