<span>Fat-soluble vitamins are essential organic substances that are needed by the body in small amounts to be used for normal functions, growth, and maintenance of body tissues. They are not readily excreted and used in the body and are stored in fat cells that can only be tapped when the first source of energy is depleted. These fat-soluble vitamins can be found in plant and animal sources that supply vitamins in the diet and should not be totally eliminated when engaged in weight loss activities.</span></span>
