Naturally sweet and good for you, fruit is a popular snack choice among kids and parents. According to KidsHealth.org, kids require about 1.5 cups of fruit per day. If you want to make fruit even more appetizing and add calcium, add low-fat, plain yogurt for dipping. A popular alternative is dried fruit. If the label doesn't list any additional ingredients to the fruit, such as sugar, much of the nutritional value remains the same (but with a higher caloric density).