A method for facilitating the selection of a pet food based on the nutrient sources. A first pet food product and a second pet food product can be provided. Each pet food product can be put in a package and each package can have a primary nutrient source region with protein source indicia and a secondary nutrient region with secondary nutrient source indicium. The protein source indicia on the first and second package can be different. The primary source region and the secondary source region can comprise great than about 50% of the area of the front side of the package.