1, the taboo of bananas.
Bananas are not only delicious, but also have many medicinal values, so many people eat bananas in large quantities in pursuit of health. However, we need to remind everyone that any delicious food should be eaten in the right way, otherwise it will be counterproductive, not only unhealthy, but may even bring adverse effects.
1. Immature bananas are easy to cause constipation.
As we all know, when bananas are immature, the skin is turquoise, and after peeling, it is hard to swallow. Mature bananas, with astringent taste swept away, are soft, waxy and sweet, and are deeply loved by children and the elderly. Bananas are tropical and subtropical fruits. In order to facilitate storage and transportation, when picking bananas, you can't wait until the skin is green. All bananas we eat in the north are ripe before they are cooked. The astringency of raw bananas comes from the large amount of tannic acid contained in bananas. After the banana is ripe, although the astringency is no longer tasted, the tannic acid component 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. Overeating bananas will lead to the imbalance of trace elements.
Banana is a delicious fruit, so some people eat many bananas at a time. As we all know, this is very bad for your health. 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.
2. The efficacy of bananas
1. Improve depression
Tryptophan in bananas can be converted into serotonin in human body, which helps to relax the body, improve mood and relieve depression.
2. Relieve PMS
Vitamin B6 in bananas can regulate blood sugar level and relieve various premenstrual symptoms.
Step 3 Adjust blood pressure
Bananas are high in potassium and low in sodium, which can regulate blood pressure well. The US Food and Drug Administration allows the banana industry to publicize the efficacy of bananas in lowering blood pressure and preventing stroke.
Improve brain power
A study of 200 students in Britain found that eating bananas and other fruits with high potassium content can improve students' attention, learning efficiency and grades.
Prevention of constipation
Bananas are rich in dietary fiber, which helps to restore intestinal function and can naturally relieve and prevent constipation without laxatives.
Relieve a hangover
One of the best ways to sober up is to drink a banana honey milkshake. Bananas can protect the stomach, honey can raise blood sugar levels, and milk can help relieve dehydration after drinking.
7. Prevent heartburn
Acid reflux can easily cause heartburn, and eating a banana can relieve discomfort.
8. Prevent morning sickness
Eating a banana between meals for pregnant women helps prevent morning sickness.