Vibrant Pets does great things for your dogs no matter what you're feeding them. You feed the same amount in a teaspoon that you feed in kibble. For instance, if you feed 1/2 cup of kibble, you'd give 1/2 teaspoon of VP. It's a powder, so most people sprinkle it over the food with a bit of water. Your dog will eat it dry, but it has a tendency to fall to the bottom of the bowl so I find it all gets eaten better when mixed with water.
This supplement is more than a general supplement. It includes probiotics, and if your dog needs it, joint and muscle supplements, or additional vitamins for performance dogs. It comes in different formulas, so choose the one that best suits your pup. Show Dog is the all-purpose formula. If you're undecided, talk to the people at VP ... they're very helpful. And as Michelle said, use the Sheltie Nation discount for 20 percent off!