The fibre in bananas, both soluble and insoluble, helps to protect the body against bowel cancer, stabilize blood glucose levels, and lower harmful blood cholesterol. Bananas also contain vitamin B6, important for making red blood cells and breaking down protein and fats.Ripe bananas are great energy boosters. and with their low to moderate glycemic index (GI), provide a sustained energy supply. Full of essential potassium, bananas can help to regulate blood pressure, reducing the risk of a stroke. Here's a great way to add the many benefits of bananas to your diet with a super sweet banana split.