dietary supps only help if your dog has poor digestion, chronic deficiency, a diet related illness, or just crappy food. a complete balanced diet should cover every need. if a dog is training really hard, a higher protein content might be a good idea. but his body can only absorb so many vitamins and minerals.
otherwise supps just make your dog's urine very expensive.
~ jo and Gotti Boi (aka Thunder Thighs, aka Jughead, aka The Doo Doo Monster, aka Sexual Chocolate, aka Mister Smiley, aka Sofa King)