Some here feed Wellness Small Breed with no problems.
Max does not have any health issues or food allergies and I had to stop feeding him it because he got terrible eye guck and loose stools all the time.
It did not work for him. It was to rich in something.
If your pup has allergies and a sensitive tummy...
a food like Natural Balance Duck & Potato or another of the Natural Balance Limited Ingredient Diet foods might be worth a try.
__________________  Max (the Morkie) & Mickey (the Yorkie) |