If they're already eating Fromm and like it, I would think they wouldn't have such a hard time switching formulas. Plus, if you're more comfortable with the lower protein, I would definitely give it a try. And if you can, try to get some samples so you don't have to waste another bag if they don't like it. I am going to try the Fromm Surf & Turf (grain-free) formula in our rotation.
Hope that helps.
