Mine used to be the same as a puppy and it wasn’t until I switched her to NRG dehydrated that she became normal.
Kibble is hard for them to break down. By the time it reaches you it has been handled a lot, cooked at high temperatures, and totally altered from it’s natural state.
I would suggest feeding homecooked food, raw, or dehydrated where all you do is add water and soak to fluff it back up
I bet you if you tried this, and added a spoon of pumpkin, you would see huge improvements. When switching to any new food do it gradually. Start off small and over about a month slowly increase until the diet is completely switched over to the new one a month later.
