Kids love this simple smoothie recipe created by an eight-year-old. Kids need at least 800 mg of calcium daily, which equates to about three 8 oz servings of milk or yogurt. Children like to help in the kitchen, and smoothies are an easy and healthy food to prepare. Recruit your kids to mix up this treat, and stock up their bones with calcium. Bananas provide potassium and vitamin C, while berries are excellent sources of antioxidants. Kids today eat too much refined sugar and fat in processed foods. Smoothies are an easy way to include more fresh fruits and vegetables in your kids’ diets.