Some experts also believe that HDL is responsible for removing excess cholesterol from atherosclerotic plaques, thus slowing the growth of plaque buildup. Therefore a low level of HDL increases risk of heart attack and a high level is associated with a decreased risk of heart attack. Hereditary factors play the biggest role in determining individual blood concentrations, but several other controllable factors affect blood cholesterol levels. The substitution in the diet of polyunsaturated and monounsaturated fatty acids for saturated fatty acids has been shown to effectively lower total cholesterol levels. Examples of oils containing a high proportion of polyunsaturated fatty acids include sunflower, cottonseed, corn and soybean oil.
Olive oil contains a high concentration of monounsaturated fatty acids.
Animal fats, butterfat. and palm oil contain high proportions of saturated fatty acids and should be reduced in the diet. It is also a good idea to learn how to manage your stress in healthy ways. Suite 530 Bethesda,MD 20814-4820 or your local chapter of the American Heart Association.