Chicken Soup for the Soul Pet Food has added Beef & Brown Rice Recipe to its Classic line of adult dry dog food recipes. It is available in Adult and Large Breed Adult formulas. The natural dog food has real beef as the No. 1 ingredient. It contains no peas or legumes, byproduct meals, wheat, corn or soy. It is free of artificial colors, preservatives and flavors. The food contains omega-3 and -6 fatty acids for skin and coat health.