The banana tree is one of those few species where each part is used in some way or the other, be it the leaves which are used for eating food, the fruit which is eaten in the raw or ripe form, or the flower or stem which is also consumed.
Banana stem can be cooked or consumed raw in juice form. The stem is cooked in various ways in South Indian cuisine and in some parts of West Bengal.
Banana stem is a rich source of fiber and helps in weight loss. Its high fiber content creates a feeling of satisfation and hence, reduces the intake of food. It also helps ease constipation. Banana stem is rich in potassium and vitamin B6 just like the fruit. Vitamin B6 helps in production of hemoglobin and insulin. Again, it improves the ability of the body to fight infection. Potassium helps in the proper functioning of muscles, including the cardiac muscles. It also helps prevent high blood pressure, and maintain fluid balance within the body. Banana stem is said to be a diuretic and helps detoxify the body. It is used prevent and treat kidney stones.
Source: The Hindu