Four major groups of lipoproteins help in transport of lipids. These include:
1. Chylonzicrons-function is to carry dietary triacylglycerols
2. Very low density lipoprotein (VLDL)-function is to carry endogenously made triacylglycerols
3. Low density lipoprotein (LDL)-function is to carry cholesterol and cholesterol esters, and
4. High density lipoprotein (HDL)-functions in reverse cholesterol transport and exchange of apoproteins.