When it comes to sales of pet food, Wal-Mart is top dog.
When it comes to sales of pet food, Wal-Mart is top dog. Its push last year to gain a greater share of the recession-proof category not only catapulted pet food to Wal-Mart's top-selling food and beverage category, but the retailer's Ol' Roy store brand outsells all national brands. Wal-Mart owns the No. 1 dog food in the world, Spencer Blaker, a consultant with Willard Bishop, Barrington, Ill., told