Hi Melissa-
When you say “he wasn’t that interested in it” in reference to NutriSource, do you mean that he wouldn’t eat it or that he was not excited about eating it?
I’m guessing you have only had him for roughly 3 and a half months? He might have needed more time on NutriSource before having his diet changed even though you did a slow transition. How long into having him did you switch him to Fromm?
If he was willing to eat NutriSource, but just wasn’t jumping for joy about it, I would switch back to that. Too many diet changes while he is a puppy could result in pickiness. That is what I went through with the dog in my picture when he was younger. Not to mention there were a couple foods that I had tried once previously with him that he wouldn’t eat and then we revisited the food and he ate it just fine.
