The percent daily value for vitamins A, C, calcium and iron will appear on most labels. I recommend that you buy juices that have close to 100 percent of your daily need of vitamin C per serving. If the label shows this product has very little or no vitamin C, make another selection. It is more economical to make choices that will boost your vitamin C for the day while it quenches your thirst. Juices packed with vitamin C may have water and sugar listed in the ingredients.
Juices naturally contain water and sugar.
Some juices, such as orange juice, do not require additional water or sugar. Other juices from very tart fruits such as cranberry or grape may require sweeteners to be palatable. Remember juice can quickly fill up a child's small stomach, dulling their appetite. The child may then compensate by choosing fewer other foods, thereby not eating enough fruits and vegetables to get the nutrients he or she needs in a day. So be smart about the amount and timing of juice you serve.