Shark fin is rich in collagen, which can relieve depression and color. Shark's fin is made by removing the skin from the dorsal fin, tail fin and other parts of the shark. Many people think that eating shark's fin is a symbol of identity. They don't know that they have been cheated after spending money. So what are the nutritional values of shark fin?
Many people think that shark's fin is the 'top supplement', but we need to know that the main nutritional component of shark's fin is collagen, and its nutritional value is similar to pig's hoof, chicken skin and fish skin. In addition, shark fin contains mercury, cadmium and other heavy metals, which may damage the kidney and central nervous system. Because of the scarcity of shark's fin, artificial shark's fin began to make up for the number and become popular.
Often do shark's fin restaurant master penetration: a pack of artificial synthetic fake shark's fin prices 30 yuan, can make six shark's fin. The key to the taste of shark fin is how the soup is adjusted. He first added some pumpkin paste, said it was for color mixing, and then mixed some seasoning, while mixing and tasting, until the soup taste like a real shark fin soup. Finally, put the artificial shark fin into the soup.
In this way, the cost of a shark's fin soup is about five yuan, and the price sold to consumers is 150 yuan, with a gross profit of 30 times. About 40% of the shark fin consumed in the domestic market is supported by the so-called artificial shark fin, which has already formed a black interest chain. These artificial shark fins, from synthesis, to the preparation of shark fin essence, to the preparation of sodium hydroxide gelatin hydrogen peroxide, contain a large number of substances that damage the digestive system of human kidney and cause cancer. Judge whether you drink real shark's fin, and check whether there should be chondroitin sulfate in it!
So here: for the sake of our health, we should not eat fake shark fin; in order to protect the common ecology of mankind, should we also keep the real shark fin away from our table?
Shark's fin is high in protein, which increases the burden of kidney
Some people say that shark fin has a high nutritional value, especially high protein. However, there are many high protein foods in common foods. Let's first look at the data in the table of food nutrients:
This table shows that shark fin belongs to the food with high protein and low fat, but when you think about it, the protein a person needs is 60-90g a day, but this amount is made up of many kinds of food. And one can't eat one kind of food in a day - Golden shark fin 2 liang, that's not enough! Besides, how can you eat so many real golden shark fins? Even if you eat them, the cost is too high. Moreover, for some serious kidney patients, it is not suitable to eat such a high protein food, but increase the burden on the kidney.
The absorption rate of high protein food on an empty stomach is very low
We can imagine that many people eat very expensive shark fins in business banquets, that is to say, in banquets, they often start eating on an empty stomach, thinking that eating on an empty stomach is good. This is a mistake. However, if you eat these high protein foods on an empty stomach, the absorption rate is very low. Fasting fish meat will lead to the waste of protein decomposition, that is, when the body needs energy, because there is not enough carbohydrate, it has to decompose protein for energy supply. After the protein is decomposed, a large amount of nitrogen-containing waste will be produced, which will increase the burden of liver and kidney, promote the proliferation of spoilage bacteria in the large intestine, affect the micro ecological balance of the intestine, and increase the risk of colon cancer. On the other hand, it is easy to overeat fish on an empty stomach, and excessive intake of animal protein will cause acid-base imbalance in human body.
From the economic point of view, 100 grams of shark fin is worth tens of thousands, and 100 grams of soybean is only a few yuan. If you want to reach the protein content of shark fin, you only need to eat less than 300 grams of soybean. This common people can accept the price and food, and soybeans belong to plant protein, easy to digest and absorb. Eating right amount of soybeans every day is our way of life.