Eat some fat Your body needs some fat. The trend towards low-fat foods has actually made many people fatter. Total calories still matter. Too little fat brings strong cravings for this essential nutrient. For better health, reduce the percentage of fat from animal fat and saturated oils.
Olive oil is a tasty alternative.
There's many benefits. Be sure to warm up and cool down before vigorous exercise. It's not necessary to be super-slim to benefit. A person who is very overweight may be able to further reduce Caloric intake - check with a doctor first.