Hi i had a similar problem with my yorkie when I changed from old hypo allergic food to the Blue buffalo 100% grain free food - high protein food. The vet told me to first mix the old food with the new food for at least 5 days, before you actually start off with the new food. So for a week give your dog a mixture of both foods together, and than the 6 day start just the new food. This should help. It worked for me.
Thanks
Hope this helps, |