As a lazy cancer patient, Xiao Jiu likes bananas very much. On the one hand, because of its sweetness, it is also very convenient to eat. On the other hand, since Xiao Jiu went out to study and work, he has been constipated from time to time, and bananas have become a must-have fruit for home travel. However, according to Xiao Jiu's experience, the laxative effect of bananas is quite unstable, sometimes effective and sometimes ineffective. Is it really best to eat bananas when you are constipated?

Bananas can relieve constipation, but bananas can't?

There was a popular saying in Weibo that "bananas can make people constipated, but bananas can't. However, most of the products we buy in the market are bananas! ..... "Others popularized a set of" counting edges "to distinguish bananas from plantains, saying that bananas have five edges and plantains have only three.

In fact, according to nutritionists, bananas and bananas are almost the same in dietary fiber, protein content, carbohydrates and vitamins. There is little difference in the main nutritional components between the two, and both of them have the functions of promoting gastrointestinal peristalsis, relaxing bowels and moistening intestines.

Why are some bananas ineffective for constipation?

Some people eat bananas, but constipation is aggravated, mainly caused by tannins in bananas.

Compared with mature bananas, the biggest difference between immature bananas and mature bananas is whether they have astringency, and the astringency mainly comes from tannic acid in bananas. Tannic acid is a chemical substance with astringency, such as tea and persimmon. Tannic acid has a strong astringent effect, which will make the stool dry and hard and aggravate constipation symptoms.

There are many ripe bananas on the market now. Although ripe bananas can't smell astringency, tannic acid still exists. If you buy this banana, you can't expect constipation. If it is a naturally mature banana, the tannic acid in it will be greatly reduced, so it can really play a laxative role.

Three methods to identify ripe bananas

1, look: generally there are no black spots on the ripe banana skin, which is a sign of banana maturity.

2. Smell: Naturally ripe bananas smell like natural fruits, while ripe bananas usually smell like chemicals or sulfur.

3. Taste: Naturally cooked bananas are softer and sweeter, while mature bananas are harder and not very sweet to eat.

Therefore, plantain will not cause constipation, but only when you eat immature and mature bananas. Really ripe bananas will not cause constipation, so be careful when buying bananas in the future!