3. Diarrhea
Bananas are nice and thick in their consistency and this makes them very useful for adding bulk.
In particular, this makes them a good choice for if you’re struggling with diarrhea. Eat some bananas and they will help to add more weight to your stool while also drawing in water thanks to the potassium. This can also help to replenish lost electrolytes if this has been going on a while.