Give Your Eyes Good Care - Bananas
Do you care about the health of your eyes? Have you taken any measures to protect them? Do you know what methods can be used to give your eyes good protection? In fact, protecting your eyes is not difficult; you just need to know how to use the right methods and approaches. So, what methods can be used to protect the eyes?
Eating bananas is good for your eyes and can prevent myopia. This is because when the human body takes in too much salt, it causes a large amount of water to be retained in the cells, leading to eye redness and swelling. The function of bananas in protecting the eyes is first related to their rich potassium content. The potassium in bananas helps the body expel this excess salt, achieving a potassium-sodium balance and relieving eye discomfort. In addition, bananas contain a large amount of beta-carotene. When the body lacks this substance, the eyes can become painful, dry, dull, and listless. Eating more bananas can not only alleviate these symptoms but can also, to a certain extent, relieve eye fatigue and prevent premature aging of the eyes.
Bananas Cannot Provide a Large Amount of Carotene
Is it true that bananas contain a large amount of beta-carotene? Let's check the food composition table. According to the 2002 Chinese Food Composition Table, every 100 grams of ordinary bananas contains 60 micrograms of beta-carotene, equivalent to 1.25% of the daily vitamin A requirement for adult men. According to the 2004 Chinese Food Composition Table, every 100 grams of Thai red-skinned bananas contains 38 micrograms of beta-carotene, equivalent to 0.79% of the daily vitamin A requirement for adult men. According to food composition tables from the United States and Canada, this value is around 1%.
As you can see, regardless of the version of the food composition table, the conclusion is the same: bananas cannot provide a large amount of beta-carotene, and therefore cannot supply the human body with enough vitamin A.
Carotene is orange-yellow and is only absorbed by the human body in the presence of oil.
Actually, there's no need to check a food composition table; you can see with your own eyes: carotene is orange-yellow, but bananas are clearly white, and no one eats the yellow peel. So, where can the carotene be hidden? On the other hand, carotene is a fat-soluble substance that relies on oil for absorption. Bananas are usually eaten as a snack between meals and are consumed alone; they are not stir-fried with oil or mixed with salad dressing. The small amount of carotene in them has a very low absorption rate, which can be completely ignored.
From these two points, it is clear that bananas cannot possibly provide beta-carotene, so this is definitely not the reason they are good for the eyes. In comparison, papaya and mango are the best sources of carotene among fruits, and apricots, persimmons, yellow peaches, and loquats contain far more carotene than bananas.
Many Fruits Contain as Much or More Potassium Than Bananas
However, bananas do contain a considerable amount of potassium. The potassium content in 100 grams of bananas exceeds 180 milligrams, making it indeed a high-potassium, low-sodium food. But such foods are not limited to bananas. If calculated by unit of calories, common fruits like kiwi, papaya, mango, orange, hawthorn, cherry, and apple all have higher potassium content than bananas.
In fact, all fruits and vegetables contain a large amount of potassium, and the beta-carotene content in green leafy vegetables is more than 20 times higher than in bananas. Shouldn't we say this instead: People who often work on computers should eat more green vegetables, more oranges, more mangoes...
So now you know how to protect your eyes well. Don't let your eyes develop any problems. And after the above introduction, you must already be very clear on how to do it. Isn't it very simple to achieve such an effect by eating more of these vegetables and fruits!