Superfoods are foods that have a very high nutritional density. This means that they provide a substantial amount of nutrients in relation to the calories. They contain a high volume of minerals, vitamins, and antioxidants. Antioxidants are natural molecules that occur in certain foods. They help neutralize free radicals in our bodies. Free radicals are natural byproducts of energy production that can wreak havoc on the body. Superfoods are not cure-all foods but help a lot in a balanced diet.