Grab a cold one and watch your child chug! Once lil ones reach their first birthday, their intestinal tracts have matured enough to properly digest cow's milk and absorb its fat content. The dairy aisle of the grocery store is filled with enough varieties to suit every tot's taste. Before grabbing a carton off the shelf, take this quiz test your knowledge.

Take This Milk Quiz Before Strolling Down the Dairy Aisle

How long after the sell-by date is unopened milk still fresh?