The shelf life of Mead Johnson Nutrition Company products can vary depending on the specific product and packaging. Generally, powdered infant formula, such as Enfamil and Nutramigen, has a shelf life of about 12 months from the date of manufacture when stored in a cool, dry place. On the other hand, ready-to-use formulas usually have a shorter shelf life, typically around 12 months as well, but once opened, they should be refrigerated and used within 48 hours. For other products like Enfagrow, it is also essential to check the packaging for the expiration date to ensure freshness and safety. It is always a good idea to consult the current product labels for specific details regarding shelf life and storage recommendations. For more information, you may refer to the Mead Johnson Nutrition Company website.