Myth 1: Bananas can relieve constipation. Truth: Since childhood, whenever you are constipated, people around you will recommend eating bananas. However, if we eat undercooked bananas, constipation will be more serious. This is because immature bananas contain tannic acid, which will aggravate constipation. The bananas we usually buy are basically not fully cooked, so eating this banana can't relieve constipation.

Myth 2: Eating bananas on an empty stomach will cause diarrhea. Truth: No matter whether you are on an empty stomach or full, eating bananas will not cause diarrhea. However, patients with impaired renal function should not eat more bananas because bananas contain a lot of potassium. Eating more bananas may lead to hyperkalemia due to impaired potassium excretion.

Myth 3: Bananas are harmful to health because of radiation. Truth: It is true that bananas have radiation. Banana is one of the fruits with more potassium, most of which are beneficial to human body, but there is a very small amount of radioactive potassium -40. But its content is very small, so it is harmless to human body. In daily life, the average effective dose of natural radiation to adults is 2.3 msv/ year. For example, the radiation dose of chest radiography is about 0.02msv, and the radiation dose of chest radiography can be achieved by eating only 200 bananas in one breath. Therefore, bananas can be safely eaten, and of course not too much.

Myth 4: Banana ripening will lead to precocious puberty. Truth: Bananas are not grown in most parts of China, so we basically buy bananas that are transported by cold chain and ripened with ethephon, and bananas themselves produce ethylene hormones. Ethephon itself is very toxic. Unless you drink a bottle in one breath, it is difficult to harm the human body by relying on the ethephon left on bananas. In other words, ripe bananas will not lead to precocious puberty.

Myth 5: Bananas can't be eaten with milk. Truth: One explanation for this statement is that milk can't be eaten with acidic fruits, which can easily lead to degeneration and precipitation of protein, which can't be absorbed by human body, and even lead to diarrhea. But in fact, the two are not contradictory. It's just that some people lack certain enzymes, so eating bananas rich in fructose or milk rich in lactose will lead to diarrhea, which has nothing to do with eating together.

These are five rumors about bananas. Have you ever trusted them?