Japanese scientists have found that a fully ripe banana produces a
substance called TNF which has the ability to combat abnormal cells and
enhance immunity against cancer.
They have pointed out that as the banana ripens it develops dark
spots and or patches in the banana skin and the more patches it has the
higher will be its immunity enhancement quality.
According the Japanese scientists who have carried out this research
state that banana contains TNF which has anti-cancer properties. They
say that the degree of anti-cancer effect corresponds to the degree of
ripeness of the fruit.
In an animal experiment carried by them at the Tokyo University
comparing various health benefits of different fruits, using banana,
grape, apple, water melon. Pineapple, pears they have found banana with
best results. Banana, produces anti-cancer substance, increases the
number of white cells and has the ability to enhance the immunity of the
body.