High Fiber Dog Food Causing Diarrhea

Many dogs do not need as much fiber as we are apt to force upon them.
In fact, many dog owners find that their dogs tend to have more problems after they have switched them to a doctor-prescribed formula such as Science Diet. (Just do a Google search for science diet — the forums are full of frustrating stories on this formula)
In fact that many dogs do well on the “raw diet” which only uses meat, eggs and very little vegetables.
Another common problem is that dog owners are apt to switch dog feed brands too quickly.  A new dog food must be introduced slowly into their diet.  Ideally, you will replace their food 1/4 at a time with the new food, by mixing the new food into their old food. Increase that amount by 1/4 into the mix every two days, until you have fully replaced their old food.
This helps the dog adjust to their new food, without digestive problems and diarrhea.