The Blue Buffalo Wilderness Rocky Mountain Recipe High Protein, Natural Senior Dry Dog Food is an evolution of your dogs formula that features more beef than ever. This high protein dog food is designed to help support your dogs lifestyle and provide them with a healthy and balanced diet. It is made with natural ingredients that are enhanced with vitamins and minerals to support immune system health, life stage needs, and a healthy oxidative balance. The Blue Buffalo Wilderness Rocky Mountain Recipe High Protein, Natural Senior Dry Dog Food is available in a 22-lb bag.