A low fat diet does not mean no fat.
Some fat is needed for health.
Fat is important as a source of energy, especially for young children, because it contains twice as many calories as carbohydrate and protein. Fat is needed for absorption of the fat-soluble vitamins A, D, E and K. Fat also provides essential fatty acids that the body needs for heart health, hormone production and to build healthy cells and skin. Fats in the body act as shock absorbers to cushion body organs. The fat layer under the skin also helps to insulate the body against extreme temperatures. Because high fat intakes are related to several diseases, fat in the diet should be lowered, but not eliminated.