Suggested use: For kids ages 4 to 12 years old, chew one gummy per day. For 13 years and older, chew up to four gummies daily. For Best Results: Ages 13 and above, divide your daily amount of Natural Vitality's Calm® Gummies into multiple servings, taken with or without food. During times of stress or heavy physical activity your body may need more magnesium. A good gauge of the optimal amount is when bowels are comfortably loose. Close tightly.