Yes, Banana helps to manage hangover. Heavy drinking leads to the loss of electrolytes like potassium and magnesium. Banana is a rich source of these important electrolytes and helps to rehydrate the body. Banana also helps to calm an upset stomach due to heavy drinking. Banana, when taken along with honey, helps to gain back the lost energy due to low blood sugar levels caused by heavy drinking [5]. Tip: A cocktail made by mixing Banana with milk and honey helps to overcome the after effects of hangover[5].