I need to know what's an effective diet plan to lower bad cholesterol level ?

Be active physically: Stay physically active. Try nutritional approaches. Consider eating oatmeal, bran, apples, oranges, pears, bananas, grapefruit, hazelnuts, avocado, brewer's yeast, royal jelly, saffron, tumeric, honey (buckwheat), alfalfa sprouts, celery, beets, eggplant, garlic, onion, chili peppers, legumes, dandelion root & jerusalem artichoke. Avoid deep fried foods & whole eggs. Talk to your doctor.