If you stick with grain-inclusive, I would choose NVP Large Breed over NutriSource. That is based on my personal opinion and what I would feed my dog. I don’t like that NutriSource uses corn gluten meal. The NV uses brown rice, barley, oatmeal, and millet for carbs where NutriSource used brown rice, white rice, barley, and corn gluten meal. Other than that they are very similar.
How is he doing on the NV LID? Better, worse, or the same as when you were feeding Fromm?
I googled OptaGest because I’ve never heard of it. I applaud you for using digestive enzymes. However, if he is super sensitive and having loose stools, you may also want to add probiotics. A lot of people recommend the Mercola pets digestive enzymes and probiotics (though they are pricey). I use Dr. Langers 15 strain probiotic from Swanson’s: http://www.swansonvitamins.com/swanson-probiotics-dr-stephen-langers-ultimate-15-strain-probiotic-fos-60-veg-caps It helps our rottie with cancer and our pitt digest their food so much better.
It could be his digestive system needs more help to digest the kibble.
