Banana fruit
They are high in potassium, which helps us maintain normal blood pressure, and fiber, which helps prevent heart disease.
The high content of iron in bananas increases the production of hemoglobin in the blood -therefore they are very good for anemia.
They regulate bowel movement - whether it is constiption or diarrhea. Our elders believed that eating a banana after every meal improved digestion significantly.
Bananas are exceedingly good for students as the rich source of potassium can make a person very alert; the fruit is often called a brain tonic
Weight Loss and Obesity
Bananas are useful for weight loss as one banana only has approximately 90 calories. It contains a lot of fiber as well and is easy to digest. Furthermore, it does not contain any fats. Therefore, an overweight person does not have to eat too many calories if their diet contains some bananas, because they also serve to feel very filling. The roughage will also not make the person feel hungry by inhibiting the release of the hunger hormone, ghrelin. This will reduce overeating, keep a person healthy, but also help them naturally lose weight.
Weight Gain
At the same time as helping people lose weight, bananas can also be useful for weight gain. When consumed with milk, bananas help to increase a person’s weight rapidly. Milk provides the necessary proteins and bananas provide the sugars. Furthermore, since bananas are easily digested, a weak person can gulp 5-6 bananas in a day apart from the regular meals without giving them indigestion. This leads to an additional 500-600 calories which is quite necessary for weight gain. Since bananas have the ability to provide instant energy, sportsmen eat bananas during breaks during games for an extra surge of energy.
Stronger Bones
Bananas are linked to increased absorption of calcium.
UNRIPE BANANAS vs RIPE BANANAS
Unripe bananas have pro-biotic bacteria, a friendly bacterium that helps with good colon health. In addition, green bananas also help you absorb nutrients better, particularly calcium.
Bananas also have higher levels of antioxidants as they ripen. One interesting fact about fully ripened bananas is that they produce a substance called TNF (Tumor Necrosis Factor). This means that ripe bananas have anti-cancer qualities as they combat abnormal cells. The more dark patches a banana has, the higher its immunity enhancement quality will be.
Banana stem
The banana stem has fiber – this is very beneficial for those on a weight-loss program. It is also a rich source of potassium and vitamin B6 which helps in the production of insulin and hemoglobin. Eating banana stem once a week keeps high blood pressure in control. Banana stem also maintains fluid balance within the body. It is a diuretic and helps detoxify the body. The popular belief is that eating banana stem is very good for kidney stones.
Reference
https://www.organicfacts.net/health-benefits/fruit/banana.html
http://www.onegreenplanet.org/vegan-health/ripe-vs-unripe-bananas-which-are-better-for-you/
http://www.livestrong.com/article/527881-are-green-bananas-better-for-you/
http://www.medindia.net/patients/lifestyleandwellness/medicinal-properties-of-the-banana-plant.htm
http://www.thehindu.com/news/cities/chennai/chen-food/chen-recipes/fibre-of-health/article4016286.ece