Garlic is comprised of various components with different properties including lowering blood cholesterol levels, inhibits platelet aggregation, increased fibrinolytic activity, inhibit atherogenesis and lowering blood pressure, so it can reduce the risk of coronary heart disease. Some research also indicates the role of garlic as antioxidant and anticancer effects.

In Thailand Institute of Scientific and Technological Research created a capsule containing garlic extract which is equivalent to 7 grams of fresh garlic per capsule. Dose used was one capsule twice daily for five months. In the first month of blood cholesterol increases. This is the possibility of annihilation of fatty deposits in blood vessels. HDL cholesterol increased after 2 months of delivery. Cholesterol levels decreased significantly after 8 weeks, but only triglyceride reduction occurred after 5 months of garlic.

Other studies have shown that administration of garlic essential oil is equivalent to 1 gram of fresh garlic / kg / day given in conjunction with high-cholesterol diet, will lower blood cholesterol, serum triglycerides. VLDL, LDL and increase HDL.