It produced worms a month after opening the package, even though it had 1+ year until expiration and was properly stored. As it turned out, it was very poor in nutritional ingredients and, from what I read, Hill's has the bad tendency to constantly change their recipes (for their benefit and not for our four-legged friends), despite claiming the opposite. The reason I bought this food was to address my dog's digestive issues, as recommended by a veterinarian, of course, due to the plant fibers it contains. However, these can be found in other brands as well, with richer nutritional value. Overpriced in the opinion of many and heavily promoted by veterinarians and pet shops. Never again!