That should never happen. You should pick dog foods to begin with that you know you can trust. Anything from Purina and Hills and Royal Canin make excellent choices. And you should feed them appropriately within the guidelines that they recommend or that your veterinarian has suggested. But if you fed them something and they vomited it up, they had diarrhea, they were lethargic—all of those are good clues that that was not sitting well with them at all.

We use an elimination diet when we think a dog has either a gastrointestinal or a skin problem related to its diet. When dogs have an allergy or a hypersensitivity to food, it's generally the protein, the beef, the chicken.

And of course, the most common protein that we feed dogs sometimes is milk protein. It's not ever very often a grain that’s causing you hypersensitivity. So a hypoallergenic food or elimination food is picking a food that has a single protein, and probably one that you've never been on before.

So if you're always feeding chicken, we might try a lamb food and also a single carbohydrate source so we can eliminate all the other possibilities. Then we feed them that for about 12 weeks, during which time your dog's GI problems or skin issues are hopefully better.

Then you can then slowly add back a few things. And if the dog does well on them, then that is not something they were allergic to. So that's how we do that.

We really don't recommend that you feed them human food. There are so many needs for dogs that you should feed them the particular lifestyle that they are in. And then they can be supplemented with some dog treats, for sure, but people food - even things like grapes that are healthy for us - can be very toxic to dogs.

So the best thing to do is just, across the board, say that you're not going to feed your dog people food. They'll be less likely to become overweight. They won't beg from the table so much. They will be healthier if you follow that recommendation.

Yes, we always recommend that you take at least a week to transition your dog's food from one food to another food. It gives the bacteria a chance to change which bacteria it needs to break it down. Sometimes the fiber content of one food is different from another. We don't want any shock to their little gastrointestinal system. So make your changes slowly and I think you'll be more successful.

Not really, as long as you use a shampoo that's pH balanced for a dog. I believe you can bathe them just about as often as you need to, because some dogs play a lot outside. When they're puppies, some dogs soil themselves in their crates. You just give them a good bath and get them cleaned up.