Banana flower (Musa acuminata (Colla.) Musaceae family) is sliced and fried as food in the West Indies.  When overripe they are a mild laxative.

A cooked whole banana, fruit and skin, is boiled then eaten to settle stomach infections and diarrhea.  CAUTION: Bananas are often sprayed with pesticides and fungicides.  (More)   (Banana as an edible flower)

Organic bananas require extra care.  Right photo: bananas are covered with an insect and bird proof bag. The fruit is high in vitamin C, B6, folic acid, potassium, riboflavin and magnesium.
A wagon load of plantains outside a market in the Dominican Republic.  Whole cooked plantains are used to resolve digestive problems, gastritis, diarrhea, ulcers.  More about plantains and bananas.