While the classic (Bananas, Rice, Applesauce, Toast) is a great starting point because these foods are low-fiber and binding, you don't have to stop there.
The biggest risk with diarrhea is dehydration. Drinking water is a start, but you need electrolytes to replace what you're losing. 2022---Home-remedies-for-diarrhea--what-works-now
Oral rehydration salts (ORS), Pedialyte, or diluted fruit juices. While the classic (Bananas, Rice, Applesauce, Toast) is