So our little boy is now 3 months old, almost 4 months. He came to us.on royal canin and had runny poop. He was wormed by the vet and no change. We started giving him half canned foods and half dry which gave him extremely watery diarrhea so we put him back on just royal canin. He still had the water diarrhea and he has no worms or anything. Just yesterday I started him back on grain free canned (halo lamb flavored) with prozyme mixed in(this stuff worked miracles for my german shepherd). What else can I try for my poor baby boy his vet wants to run all these tests on him which i'll do but i'm wondering if maybe a simple food change will help him. Seems like all the stress of going back and forth to the vets does nothing but aggrevate his issues.