? How can a put a little weight on my Chi

Some of the dog foods are higher in calories and fat than others. Check the labels - sorry I don't know which ones.

I'm a firm believer in using a really good, quality food. Yes, it costs a little more but they contain much more healthy ingredients and a lot less filler, so you usually feed less. That said, I don't consider any of the supermarket or discount store foods to be quality foods. Yes, I am very picky about what I feed Jasmine, and this is just my opinion. For the past couple of months, I have been feeding Royal Canin. Jasmin loves it, and she is doing well on it. Her coat is healthy and shiny too. Treats are fine, and I have used most of the treats listed in the other post at one time or another.

Good luck on fattening up your baby.

Personally I don't use Royal Canin, but I know it's good.

You may not want to make efforts to fatten your pup up. Just being off a bad food and on such a good food might do the trick. How long has your puppy been eating Royal Canin?

Good advice from Frasier's mom, if your chi is on a proper diet, they will fill out to a good normal weight and body fitness. Trying to fatten your pup up within a short period of time can do more harm than good, wait and see how your pup does on the new diet, and in a few months if its still skinny, consult your vet about supplementing or changing diets.