Oil is the main ingredient that has to be added in every food to get the taste. But the same oil is the enemy for the patients having heart diseases as the oil is the main reason for creating the blocks in the hearts. As a result these patients are forced to take the tasteless non-oily and non-cholesterol foods every time. However there is an exception in the oils. Olive oil helps to reduce the cholesterol in the body. It has been proven by the scientists too. So these patients can prepare their foods with olive oils and retain their tasty foods.