On September 27, 2012, Premium Nutritional Products, Inc. initiated a voluntary recall of ZuPreem FruitBlend™ With Natural Fruit Flavors maintenance formula bird foods for medium/large birds and for large birds with use by date codes of 11/30/13 or 11/13 and lot numbers 598405052 or 598405072. The recall is being conducted due to the product containing the combination of exceedingly high calcium levels, low phosphorus, and high vitamin D concentration resulting in a significant health risk to the birds.