Introduction: As we all know, when bananas are unripe, their peels are green. When peeled, they are too astringent to be eaten. When ripe, the astringency disappears completely, leaving a soft, sweet, and delicious fruit that is loved by children and the elderly.
1. Unripe bananas can easily cause constipation
Bananas are tropical and subtropical fruits. To facilitate preservation and transportation, they cannot be left to ripen on the tree. Instead, they must be picked when their peels are still green and then stored. The bananas we eat in northern regions are ripened artificially after picking. The astringent taste of raw bananas comes from the large amount of tannic acid they contain. Although the astringency is no longer noticeable when the banana ripens, the tannic acid is still present. Tannic acid has a very strong astringent effect, which can harden stool and cause constipation. The most typical case is that after eating bananas, the elderly and children not only fail to relieve constipation but may even experience it more severely.
2. Eating too many bananas can cause an imbalance in trace elements
Bananas are a delicious and tasty fruit, so some people eat them in large quantities at once. However, this is very unhealthy for the body. Bananas contain relatively high amounts of elements like magnesium and potassium. While these minerals are essential for health, consuming a large amount in a short time can cause a sharp increase in the levels of magnesium and potassium in the blood, leading to an imbalance in the proportion of elements like potassium, sodium, calcium, and magnesium, which is harmful to health. Furthermore, eating too many bananas can significantly reduce stomach acid secretion, leading to gastrointestinal dysfunction and excessive emotional fluctuations. Therefore, bananas should not be consumed in excess.
3. Bananas should not be refrigerated
Everyone knows that bananas are picked when they are about 60-70% ripe because they ripen quickly. If they were picked when fully ripe, they would not taste good and would not look fresh. After picking, bananas require a high storage temperature, generally between 11-13°C. The temperature for storing fruits and vegetables in a refrigerator is usually around 4°C, with a maximum of 8°C. If bananas are placed in this environment, they can be easily damaged by the cold. They will turn black within a day, become soft and mushy, their texture will spoil, and they may even develop spots or rot.
4. Do not eat bananas on an empty stomach
We say bananas can be a meal replacement, but you should not eat a large quantity of them on an empty stomach. This is because bananas contain large amounts of potassium, phosphorus, and magnesium. For a healthy person, a large intake of potassium and magnesium can disrupt the balance of sodium and calcium in the body, which is unhealthy. Therefore, you should not eat too many bananas on an empty stomach.
5. Banana incompatibilities
Banana + Yogurt: Eating them together can easily produce carcinogens.
Banana + Potato: Eating them together can cause spots to appear on the face.
Banana + Taro: Eating them together can cause bloating and poisoning.
Banana + Sweet Potato: It is inadvisable to eat them together.
Banana + Potato: Eating them together can easily cause spots.
Banana + Taro: Eating them together can cause bloating.