Bananas steamed have a laxative effect. Banana is sweet in taste and cold in nature, which can clear away heat and moisten intestines and promote gastrointestinal peristalsis, but it is not suitable for diarrhea due to spleen deficiency. There is always a reasonable explanation for everything. Bananas are cold. According to the principle of "heat is cool", it is most suitable for people who are hot and dry. People with hemorrhoid bleeding and people with hot and restless fetus can eat raw banana meat. But it is precisely because bananas are cold that people who are prone to deficiency and cold had better avoid them. For example, people with stomach cold (light mouth and bloating), deficiency cold (diarrhea and dizziness), nephritis (also deficiency cold) and swollen feet during pregnancy, it is best not to eat bananas raw. Banana meat can't be eaten unless it is cooked, and its coolness is reduced. As for colds and coughs, bananas are not edible, but it is acceptable to steam bananas before eating. The folk prescription is more effective to treat chronic cough with banana stewed rock sugar; Cook wine with bananas as a diet. Modern medicine believes that banana can cure hypertension, because it is rich in potassium, which can balance the adverse effects of sodium and promote the growth of cells and tissues. Banana can be used to treat constipation because it can promote gastrointestinal peristalsis. Most interestingly, German researchers said that bananas can cure depression and emotional anxiety because they can promote the secretion of endorphins in the brain. In short, people who are hot and dry can eat a banana a day, but if they are afraid of bananas catching cold, they can choose to eat banana (which has stronger laxative power) and imperial bananas.

However, raw bananas can cause constipation. In daily life, many people think that eating bananas can play a laxative role, so some people with constipation often eat bananas. However, bananas can not only solve some people's constipation, but also cause dry stools. No wonder constipation patients often think: why can't the more you eat bananas, the more you can't get rid of your stool? Because bananas can't play a laxative role.

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 should not wait until the bananas are ripe, but wait until the skins are green. The bananas we eat in the north are all ripe.