Diarrhea
There are many types of diarrhea, and one of them is called osmotic diarrhea. When there’s a lot of solute in the intestines, as in undigested food and nutrients, the organism tries to compensate the concentration by dragging in water, which increases the volume of the stools. Thus, diarrhea is the result of undigested fats and nutrients accumulating in the stools and altering the osmotic pressure.