 A possible physiological basis for the hypothesis of a protective effect of apples on serum cholesterol and body weight would be their fiber composition, so the study presents a comparison arm for the consumption of dietary fiber adjusted for total calories oatmeal cookies. However, another possible physiological factor could be the energy density of foods. Energy density is an important determinant of energy consumption because a high intake of a diet low energy-dense food, such as fruits, makes excessive energy consumption more difficult, and few studies have been conducted on satiety and weight control and serum cholesterol. Recently 2012 discovered the presence on the apple peel a substance named ursolic acid that showed the effect in reducing body weight. 