 Fred is certainly proof of that. And Dr. Black wants to prove it to you with a free Jumpstart trial bag so your dog can try it. Just cover the shipping. You don't even have to change your dog's food. Just sprinkle on a scoop of Rough Greens. Go to roughgreens.com slash jesse for your free Jumpstart trial bag. That's roughgreens.com slash jesse or call 833-33-MY-DOG.