Foods to avoid if a person is on a no cholesterol diet are animal products such as meat, dairy, poultry and some fish, according to WebMD. Therefore, a no cholesterol diet is basically a vegetarian diet. However, whey protein, which is found in dairy products, is known for lowering both "bad" low-density lipoprotein cholesterol and cholesterol levels overall, says Mayo Clinic. Protein powders, which contain no cholesterol, are a good source of whey.
Fruits, vegetables, nuts, seeds, vegetable oils and legumes have substances called sterols and stanols, says Cleveland Clinic. These substances lower cholesterol by preventing it from being absorbed by the small intestine. Only LDL cholesterol is blocked in this way.
One food that is a good choice for a no-cholesterol diet is oats, according to Prevention. Oats contain beta-glucan, which absorbs cholesterol and assists in its removal from the body. Red wine is also good for lowering LDL cholesterol, especially if it is made from high-fiber Tempranillo grapes. Nuts are known for lowering both LDL cholesterol and cholesterol levels in general. However, they are also high in fat.
Other LDL fighting foods include black tea and beans, which are also high in fiber. Chocolate, which not only supports levels of "good" high-density lipoprotein cholesterol but also has antioxidant properties, is also a good choice, says Prevention. Margarine fortified with plant sterols also help lower cholesterol, as does garlic.