If you have special medical conditions that require notice of other food components, such as sodium, trans fats, and cholesterol, you must use the Nutrition Facts Table to check for your (1) individual restrictions, including nutrients and allergens, or (2) eating targets, including minerals such as calcium, iron, and potassium. You will also find it necessary to peruse the Ingredients List. The Smile Food System rating can complement, but not replace, the attention required to other food components listed on the packaging. The amount of calories in a food is another value that you should understand (see below).