I am not familiar with Carna4 Gold, so I just looked it up on here. To me, it looks to be a very good food. A couple of other foods I would recommend if you are interested in rotating foods, is Now! Fresh small breed and Acana. Now! has a nice small kibble size, and I definitely trust the company. Acana’s kibble size ranges. Some of the ones in the original line can be small or large and the one’s in the regional line tend to be large (about the size of a nickel). I have a poodle myself and he doesn’t have a problem with the large kibble size, but all dogs are different!