In the United States people eat more bananas every year than apples and oranges combined. From the store many of us bring home a bunch of bananas and eat them throughout the week. When you buy them they have green-yellow color and spotless, but the bananas continuously ripen as time goes by. Eventually, they begin to develop brown spots, which until the entire banana is covered in brown grow bigger and bigger. We all know that if a fruit turns brown it is usually rotten, so many people throw them away.

However, the riper it is, and the more TNF it contains the more dark patches a banana appears to have. TNF stands for Tumor Necrosis Factor, and it’s a cancer-fighting substance that helps fight against abnormal cells in our bodies. Specifically, to assist communication between cells in our immune response system TNF helps and it guides the movement of cells towards areas in our bodies which are inflamed or infected. That the TNF found in ripe bananas interferes with tumor cells growth and inhibits them from spreading by causing cell death, or apoptosis research has confirmed. This, boosts our immune systems and can increase our white blood cells as well in conjunction with the high levels of antioxidants which are also found in bananas. Don’t pass it over the next time you see a banana with brown spots. Instead, eat it up and give your body a mini-health boost and some extra energy.