Excessive eating of bananas can cause an imbalance in the proportion of trace elements. Bananas are fragrant and delicious fruits, so some people (those suffering from acute and chronic nephritis, renal insufficiency) eat a large amount of bananas at one time. Bananas contain a lot of magnesium, potassium and other elements. Although these mineral elements are necessary for human health, if they are taken in too much in a short period of time, they will cause a sharp increase in the magnesium and potassium content in the blood, causing problems in the body. Imbalances in the proportions of potassium, sodium, calcium, magnesium and other elements are harmful to health. In addition, eating more bananas can also cause gastrointestinal dysfunction and excessive mood swings due to a greatly reduced gastric acid secretion. Unripe bananas can easily cause constipation. As we all know, when bananas are not ripe, the outer skin is green, and if you peel off the outer skin, they will be too astringent to swallow. Bananas are tropical and subtropical fruits. In order to facilitate storage and transportation, when picking bananas, you cannot wait for them to ripen. Instead, they must be picked and stored when the skin is green. The astringent taste of raw bananas comes from the large amount of tannic acid contained in bananas. Tannic acid has a very strong astringent effect and can form dry and hard stools, causing constipation.

The most typical thing is that after the elderly and children eat bananas, instead of helping them to defecate, they may suffer from obvious constipation