Cholesterol moves in the blood in the form of
distinct particles which contains proteins and lipids as lipoproteins. Mainly three types of lipoproteins are found in the serum of fasting individuals which are HDL, LDL, VLDL and HDL-cholesterol, and their concentration level in the serum is inversely related with the risk for cardiac diseases (Circulation, 2002). It is evident that HDL lipoprotein provides effective protection against atherosclerosis development, while a low concentration of HDL in serum indicates the presence of some other atherogenic factors. By some recent clinical trials it has been proved that LDL is strongly valid and it shows that lowering therapy of LDL level in serum is very effective in reducing the risk of cardiac diseases (Circulation, 2002).