Their study of six popular south Indian varieties of ripe and unripe bananas showed that banana controls the action of Ace, the enzyme which is responsible for forming the substance Angiotensin-2, which constricts blood vessels resulting in high blood pressure. They also found that people who ate two bananas a day for just one week recorded an amazing ten percent fall in blood pressure.
That is because the banana is one of the best natural sources of potassium, the mineral important to keep blood pressure in check.
Bananas are one of the best natural sources of vitamins of B6 and B1 and your average banana has more vitamin B6 packed in than any other fresh fruit.
While lack of this vitamin can cause skin and nervous disorders, B6 is of particular interest to women because it relieves many symptoms of premenstrual tensions.
Chronically Moody? Irritable? Have a banana because Vitamin B6 helps in the production of serotonin, a chemical released by the brain that has a calming effect on the body. That is why many antidepressant drugs, the most famous of them being Prozac, work by regulating serotonin levels in the body.
It is a naturally alkaline qualities neutralizes over acidic conditions in the stomach. It forms a protective lining in the stomach which keeps off acidic it also contains chemicals that help fight stomach bacteria, the primary cause of stomach ulcers.
A fully ripe banana has 20-25 percent carbohydrate. In fact, every 100 grams of banana contains 90 calories but no cholesterol. This combined with a high fibre content and vitamin makes it the complete energy food. What is more, the potassium helps boost concentration and memory. The fruit is also a sportsman’s friend as it keeps the muscles toned and prevents cramping.