You have to have a recipe formulated by a vet nutritionist. The supplement used by most is balance it and you can get it from balanceit.com. If you have a puppy though your going to have to pay for a recipe I believe but not using a recipe from a vet nutritionist and the supplement can really harm your dog.
__________________  Taylor  My babies Joey, Penny , Ollie & Dixie   Callie Mae, you will forever be in my heart! |