Good Night

The banana -

Although bananas do not contain high amounts of calcium, they do supply the body with an abundance of fructooligosaccharide, a prebiotic substance (one which encourages probiotics, the friendly bacteria in the digestive system). As fructooligosaccharides ferment in the digestive tract, they enhance the body's ability to absorb calcium. source

Bananas are an excellent source of potassium, with one large banana containing 602 mg and 140 calories. Potassium is an important mineral for the correct function of tissues, cells and organs in the body, especially normal digestion and muscular function. Too much sodium in the diet, common in the Western diet, can increase the requirement of potassium. Deficiency can be caused by diarrhea, vomiting, malnutrition, Crohn's Disease and excessive sweating. The potassium from bananas can reduce the risk of heart disease and stroke and reduce blood pressure. source