If the body doesn't need the energy from the fats, the fats will be stored for future use. If you are watching your weight, you are probably trying to avoid sweets and starchy foods. Fat contains more than twice as many calories for its weight as any other ingredient in a food. Ounce for ounce, fat has more than twice as many calories as even lean meat. You need some fat in your body to avoid becoming overweight because the fat that remains in your digestive system during the long digestive process prevents you from being hungry.
Triglycerides appear in two forms, saturated and unsaturated.
Saturated fats are obtained from foods of animal origin. These include butter and fats in meat. They are usually solid at room temperature. Saturated fats will increase the amount of cholesterol in the body, a substance normally found in the nerves, the brain, and the blood. If excess cholesterol forms deposits on the walls of blood vessels, the blood is unable to pass through the vessels.