Corn is a cheap and controversial cereal grain of poor nutritional value to a dog. (dogfoodselector.com)
Your dog deserves the best diet possible, which means plenty of key nutrients that he needs and no low quality fillers that provide poor nutritional value. (petco.com)
The best part about their revised program is the fact that they're now committed to more natural, unprocessed foods, and «punishes» dieters for indulging in foods rich in empty calories, i.e. foods with poor nutritional value. (articles.mercola.com)