At the same time, many types of medicines are available to get relief from constipation. But, instead of that, you eat a banana. Yes, banana is very helpful in relieving the problem of constipation. In fact, bananas contain fiber, magnesium, manganese, potassium, vitamin A, vitamin B, vitamin C and vitamin B6. They eliminate digestive problems and prevent constipation. So, let's see how banana is beneficial in the problem of constipation.