So at around 4 months, I had to change my boys diet due to him not liking a food previously bout which was Nutro-grain I believe. He would not eat it unless extremely hungry. So I switched him to Science Diet Large Breed Puppy, which he absolutely loved. However, his stools are incredibly soft, and he goes quite often. Granted I understand he eats a lot and is still a puppy so that doesn't bother me, but I don't believe his stools should be so soft. Is this indicative of his sensitive stomache? I've also been reading that around 6 months most of the owners on this site have been switching to adult food for this very reason. I'm just curious if I should start shopping online for non-major chained dry food. Any input would be greatly appreciated! This if my first Bernese and I would like him to stay as comfortable as possible.