Illustration of lipids : triglyceride. LDL and HDL. Triglycerides are lipid molecules which form in the small intestine from the fat we eat. They are also produced in the liver from the sugar excess in our food. They need lipoproteins to be carried through the body. LDLs (low density lipoproteins) are responsible for carrying cholesterol in the blood to the body抯 cells. LDLs are produced by the liver from very low density lipoproteins (VLDL). LDLs are responsible for the formation of atheromatous plaques and are called 揵ad cholesterol? (LDL related cholesterol). HDLs (high density lipoproteins). are responsible for carrying excess cholesterol to the liver where it can be eliminated. This allows an accumulation of cholesterol in the blood vessels to be avoided thus avoiding the risk of atheroma. HDLs are qualified as 揼ood cholesterol? (HDL related cholesterol).