I mix the Nature's Variety rotating formulas with Bil-Jac 50/50 to maintain some consistency. The results are UNBELIEVABLY AMAZING!!!! A Labrador with orthopedic issues does amazing, an allergic to everything AmStaff is content and happy, and the little AmStaff never tasted anything so delicious...well maybe the sidewalk out front but his tastes are still developing! How food is fed, how you transisition between foods, Exercise, and grooming all work with the food for a healthy dog. Food alone is NEVER the only or entire answer, thats the entire idea of holistic! Any food will make an dog fat if you don't exercise, period! 80lb Lab is satisifed with 1.5 cups a day, 75lb Pit 2cups a day, and the 55lb Pit is only 2yrs old so he gets 2 cups a day to keep him going strong. This small amount of food is because of their metabolisms ability to utilize all the goodness they eat. They will take a treat, though never from a stranger for some reason, but aren't searching for food or acting hungry at all. All are perfect weight, per the holistic vet, and look awesome. God bless all who care enough to read these posts!!!!