As the banana ripens, it develops dark spots or patches on the skin. The more dark patches it has, the higher will be its’ immunity enhancement quality.
Hence the Japanese love bananas for a good reason.
In an animal experiment carried out by a professor in Tokyo U comparing the various health benefits of different fruits, using banana, grape, apple, water melon, pineapple, pear and persimmon, it was found that banana gave the best results. It increased the number of white blood cells, enhanced the immunity of the body and produced anti-cancer substance TNF.
The recommendation is to eat 1 to 2 bananas a day to increase your body immunity to diseases like cold, flu and others.
Tumor necrosis factors (or the TNF-family) refer to a group of cytokines family that can cause cell death.
TNF acts via the TNF Receptor (TNF-R) and is part of the extrinsic pathway for triggering apoptosis. TNF-R is associated with procaspases through adapter proteins (FADD, TRADD, etc.) that can cleave other inactive procaspases and trigger the procaspase cascade, irreversibly committing the cell to apoptosis.