diarrhea in labs

Question
Our almost 2 year old black lab gets diarrhea EVERYTIME she eats anything besides her dog food. We don't intentionally feed her anything else, but if she finds something outside or if our 2 year old son sneaks her a bite of anything, she'll get diarrhea for a day or two.  Is there something we can do to stop this!?  Thank you!!

Answer
This is a common problem, and I don't have much of an answer.  Yes you can always check with the vet.  He may not be much more help and less understanding about how hard it is to keep a Lab from eating anything that doesn't eat it first.  

If the problem usually only lasts a day or 2 that this may not help enough to be worth while.  

Bland recovery diet for dogs.

3 parts cooked rice, one part boiled hamburger or chicken, or cottage cheese. I think you can substitute boiled potatoes for the rice.  Once in an emergency, we bought a plain baked potato from Wendy's.  

This is meant for short time settling a dog's digestive tract.  It is not the complete and balanced they need long term.