Refrigerator shelf retainer and divider assembly for tall packages

A retainer including a front wall, a back wall, and opposing side walls defining a ring having a central opening is removably attached to a liner of a refrigerator door at a position spaced above a shelving unit. With this arrangement, a tall food item supported on the shelving unit and having an upper portion which projects through the central opening is prevented from falling when the refrigerator door is opened. A divider may be slidably attached to the retainer or shelving unit for laterally retaining the tall food items on the shelving unit in a snug configuration.