Black Gold Performance Blend is recommended for all breeds and ages of dogs with high to extremely high activity levels like field trial conditions, long hours of accelerated activity or stressful conditions. This formula can be used as a daily portion regardless of activity but quantities should be graduated downward for low activity dogs. Also an excellent puppy food for all breeds. Over 100 years experience with dogs and our professional nutritionist give us the edge in canine nutrition. This has always been our #1 Seller.