It should be determined by the healthcare professional according to the needs of the patient. As a supplement: 3-4 packets (750-1000 kcal)/day. As a single food source: 7-8 packets (1750-2000 kcal)/day. Store at room temperature. Opened packages can be kept in the refrigerator for up to 24 hours. It must be consumed fresh. Stir gently before consuming.