A composition is provided which contains policosanol and omega-3 fatty acids and which may be used for treating and or reducing hypercholesterolemic diseases, total cholesterol, LDL-cholesterol, LDL/HDL ratio, triglycerides, coronary heart disease (heart attacks and strokes), sudden cardiac death, ventricular fibrillation, tachycardia, hypertension, inflammation, thrombosis, deep-vein thrombosis, stroke, macular degeneration, autoimmune and/or immunoregulatory diseases, cardiovascular diseases, anxiety, depression and/or neurodegenerative disorders, and/or raise HDL cholesterol in humans and animals. The method comprises administering policosanol and omega-3 fatty acids which together effectively lower the LDL/HDL cholesterol ratio. Typically, the administered composition includes about 0.1-10:1 parts by weight of policosanol to omega-3 fatty acids.