Vitamin A in bananas can promote growth and enhance disease resistance, which is necessary to maintain normal fertility and vision. Thiamine can resist beriberi, stimulate appetite, help digestion and protect nervous system; Riboflavin can promote the normal growth and development of human body.

Bananas not only stabilize serotonin and melatonin, but also contain magnesium, which can relax muscles, so friends who are often stressed at work can eat more.

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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.

Bananas eaten in the north are not cooked until they are ripe. 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.

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