What are the taboos for eating bananas?
1, immature bananas are easy to cause constipation.
The astringency of raw bananas comes from the large amount of tannic acid contained in bananas. When the banana is ripe, although it can't taste astringent, tannic acid still exists. Tannic acid has a very strong astringent effect, which can form dry and hard feces, thus causing constipation. The most typical thing is that after eating bananas, the elderly and children can't help but defecate, but they can have obvious constipation.
2. Eating too many bananas will lead to imbalance of trace elements.
Bananas contain more elements such as magnesium and potassium. Although these mineral elements are necessary for human health, if they are ingested too much at one time in a short period of time, the contents of magnesium and potassium in the blood will increase sharply, resulting in the imbalance of potassium, sodium, calcium, magnesium and other elements in the body, which is harmful to health. In addition, eating more bananas will also cause gastrointestinal dysfunction and excessive mood swings due to the greatly reduced gastric acid secretion. Therefore, bananas should not be eaten in excess.
3. Bananas should not be stored in the refrigerator.
After bananas are picked, the storage temperature is also high, generally11-kloc-0/3 degrees Celsius, while fruits and vegetables stored in the refrigerator are generally around 4 degrees Celsius, with the highest being 8 degrees Celsius. Bananas are easy to freeze if they are placed in this environment. If they are placed for one day, they will turn black, become soft and rot, and their taste will become worse, even appear patches or rot.
4. Avoid eating bananas on an empty stomach
We say bananas can be used as food, but we can't eat them in large quantities on an empty stomach. Because bananas contain a lot of potassium, phosphorus and magnesium, for normal people, a large intake of potassium and magnesium will make sodium and calcium in the body out of balance, which is not conducive to health. So don't eat too many bananas on an empty stomach.
Summary: The above is an introduction about whether banana peel can be eaten when it is black. Hope to help friends in need!