Bringing or Storing Food in the Restroom

It is clear that one must not eat or drink in the restroom, as doing so is inappropriate. But is it forbidden also to bring food into the restroom? Many people keep sucking candies or other small snacks in their pockets throughout the day. Must they remove these products from their pockets before entering the restroom? For that matter, may food or beverages be stored in the bathroom cabinets?…