One of my boys is super sensitive as well. Any food changes started off with 100% old, 3 kibbles of new, next day 98% old, 6 kibbles of new and so on. Certain foods he cannot tolerate at all, no matter how slowly we switched. I just put all my dogs on raw and was really worried about his transition. Made sure I was off work for a few days so I could take him outside a lot. Fasted him for a day and went to raw 100%, no transition. He had about two days of softer poops but no explosives and his digestion is now the best I have seen from him in 3 years of owning him. No more unexplained diarhea, his previous huge, stinky, soft poops are now these little hard, barely smelly marbles. I love it and wish I had have done it sooner!
Eli - Hellwigg's Freedom in Stride RN CGN
Cajun - Hellwigg`s Hot for Karma CGN TT UCC
Evie - border collie mutt CGN
Sweetie - APBT CGN