Bananas cooked in salt water are edible. Boiled bananas will make you feel full, so people who lose weight eat boiled bananas in moderation, which is conducive to weight control. Bananas are also rich in trace elements, such as potassium and magnesium, which can reduce the incidence of cardiovascular diseases and have a certain preventive effect on gastric ulcer. Bananas can also remove spots and acne, and have a certain effect of relieving cough and resolving phlegm.