By Michele 
Peel away the yellow skin of a banana, and there they are, unmistakably present. Running vertically along the fruit, these intruders demand precision in their removal. While they dangle lifelessly from the flesh of ripe bananas, they tenaciously cling to less ripe ones, unwelcome nuisances. We’re referring to those irksome white strings on bananas, more technically known as “phloem bundles.”
First and foremost, it’s essential to recognize that these banana strings have a proper name—they are referred to as “phloem packets.” In the plant world, phloem plays a crucial role in transporting nutrients from leaves to fruit, contributing significantly to the growth and health of a plant. Consequently, these strings aren’t just beneficial for the banana itself; they are also entirely edible.
Contrary to the impulse to remove the phloem before indulging in a banana, it’s worth noting that there’s no necessity to do so. Despite their somewhat unappetizing reputation, phloem packets are not only edible but also rich in essential nutrients. In theory, scientists suggest it’s possible to engineer bananas without phloem, but the current focus lies in developing disease-resistant varieties to combat the prevalent issue of banana diseases.
While phloem may not boast a gourmet taste, or perhaps it’s a perception, its nutritional profile is commendable. In addition to facilitating banana growth, phloem contains numerous vitamins, including potassium, fiber, vitamin A, and vitamin B6. Even after harvesting, these vitamins persist in the phloem, contributing to the overall health benefits of consuming bananas.
Surprisingly, recent research reveals that bananas with brown spots are even healthier than their unblemished counterparts. The overripe state of these bananas enhances their nutritional content. Consuming brownish bananas may offer unexpected health benefits, including the potential to reduce the risk of cancer. These bananas contain an ingredient known to destroy cancer cells.
Moreover, the potassium content in overripe bananas contributes to regulating blood pressure. The increased potassium levels stimulate stable blood pressure, making these brown-spotted bananas a valuable addition to a health-conscious diet.