When I was a child, every time we ate fish, my mother would dig out the fish eyes and put them in my bowl, saying that eating fish eyes could protect our eyes and make reading and studying easier. Then, she would remove the fish head and let me suck the brain inside, saying that it could nourish the brain. I didn't understand it at the time, but I swallowed the hard fish eyes and sucked the brain juice from the fish head. It always felt strange, but I thought my mother must be right.
As I grew older, I came across articles explaining that eating fish eyes can improve eyesight and eating fish heads can nourish the brain. Of course, some people say that the effects are not significant. It is undeniable that fish is indeed nutritious and promotes overall health. However, the real situation is still unclear, and many people just repeat what others say. Here, I want to talk to you about the issue of eating fish.
Can eating fish eyes improve eyesight?
Most of the time, the claim that eating fish eyes can improve eyesight and protect the eyes is based on the theory of "like cures like". For example, eating walnuts can nourish the brain because their shape resembles that of the brain; eating carrots can protect the eyes because when you cut a carrot, the cross-section looks like an eye. Similarly, for fish eyes, it may be assumed that since they are also eyes, they can protect our eyes. However, if we simply rely on this assumption, it is undoubtedly unscientific to claim that eating fish eyes can protect the eyes.
Instead, we should analyze the nutritional value of fish eyes. Despite being a small and hard particle, fish eyes contain water, protein, fat, polyunsaturated fatty acids, minerals, and DHA. DHA can improve visual function. When the body lacks minerals such as calcium and zinc, it can lead to myopia. Eating fish eyes in moderation can indeed prevent myopia and protect the eyes. However, considering the limited weight and nutritional content of fish eyes, it is still better to improve and protect our eyes through other means. After all, a diverse and balanced diet is the foundation of good health.
Can eating fish heads nourish the brain?
Many people claim that eating fish heads can nourish the brain, and they do so themselves. From a nutritional perspective, fish heads contain DHA, which is very beneficial for promoting brain development. Children and the elderly should consume more of it.
However, due to worsening living conditions and severe water pollution, fish heads can accumulate pollutants and heavy metals. As pollution increases, mercury ions are common, and once methylmercury is formed, it can enter the brain when consumed and damage the nervous system. This is especially important for children, as methylmercury can affect brain development and even lead to intellectual decline.
It is undeniable that eating fish eyes can improve eyesight, but the content is relatively low, so a balanced diet is still important. Eating fish heads can indeed supplement DHA, but considering the increasing pollution and heavy metals in fish heads, the risk of harming the brain's nerves outweighs the benefits. Therefore, in our future lives, it is more important to adhere to a balanced diet in order to promote good health.
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