In regards to restrictions for patients with diarrhea, it all depends on what the underlying cause of your diarrhea is. If the cause of your diarrhea is secondary to Celiac disease, obviously you have to avoid everything that has gluten. If you're a diarrhea is secondary to some underlying Colitis, you have to make sure that your diet coincides with that disorder and you're on the proper diet in order to reduce the risk of exacerbating your symptoms. Everyone is different and every reason for your diarrhea is different. That's why you have to take every patient on a case-by-case basis.