Sihaiwang: shrimp skin is a kind of food material with very high calcium content, which is mainly made of hairy shrimp. Shrimp skin is rich in iron, calcium and phosphorus, so it is the champion of calcium supplement. But is it true? Is the effect of prawn skin calcium supplement good? Let's learn about it together with Xiaobian!
Is the effect of prawn skin calcium supplement good
Not good.
Shrimp skin can really supplement calcium, and the calcium content is very high, known as' calcium bank '. Every 100 grams of shrimp skin contains 991 mg of calcium, which is about 9 or 10 times of the same weight of milk. However, in fact, the effect of prawn skin calcium supplement is not good.
Because the shrimp skin itself is relatively hard, it is difficult for teeth to chew the shrimp skin. After entering the gastrointestinal tract, it is affected by gastric acid in the stomach, which can only dissolve a small part, most of the calcium can only be excreted with feces, and its calcium is difficult to be absorbed by the human body. Only when the shrimp skin is crushed can the human body absorb it well. If you want to eat shrimp skin and add some calcium, it will be much better to cut and grind it. People's teeth can't chew the shrimp skin thoroughly.
Of course, the evaluation of food quality can not only look at one aspect, but also comprehensive consideration. If you especially like to eat Porphyra and shrimp skin soup, or shrimp skin rape, it is also helpful for calcium supplement, which is worth advocating.
It's not reliable to simply eat shrimp skin to supplement calcium
1. Calcium supplement in shrimp skin is not easy to absorb
The shrimp skin is indeed rich in calcium. The content of calcium in every 100g of shrimp skin is 991mg, nine times that of milk.
However, the calcium is very difficult to be absorbed by the human body. Because the shrimp skin is relatively hard, it is difficult for teeth to chew the shrimp skin. After entering the gastrointestinal tract, it is affected by gastric acid in the stomach, which can only dissolve a small part, and most of the calcium can only be excreted with feces. Moreover, only when the shrimp skin is crushed can the human body absorb part of it.
2. High salt content in shrimp skin
The salt content of shrimp skin is high, and the sodium content is very high. The sodium content of every 100 grams of shrimp skin is as high as 5057 mg, which is equivalent to 12.64 grams of salt.
If you rely on eating shrimp skin to supplement calcium, a large number of consumption is absolutely not good. The daily salt intake of normal people is 6G. If they take too much salt from shrimp skin every day, they will easily suffer from hypertension, coronary heart disease and other diseases in the long run.
In addition, excessive intake of salt will also cause the loss of calcium. For every 2300 mg of sodium (equivalent to 6 g of salt) excreted by the kidney, 40-60 mg of calcium will be lost at the same time. The problem of bone calcium loss caused by excessive sodium intake can not be ignored. The more salt intake, the more calcium excretion in urine, and the more salt intake, the worse calcium absorption. Therefore, properly reducing salt intake has good benefits to bone, and reducing salt intake actually plays a role of "no tonic" to calcium.
3. Less shrimp skin
Shrimp skin is high in calcium, but also to eat a lot. However, in daily life, people eat less of it. Because the shrimp skin is relatively dry and light, the volume of 100 grams of shrimp skin is very large, and it is difficult for ordinary people to eat so many shrimp skin in a day. Stir fry to make soup, usually eat about 10 grams of shrimp skin a day. Therefore, the shrimp eat less, the calcium obtained is very small.
Of course, on the other hand, it's not feasible to eat a lot of calcium in order to make up for it. As we said in the previous article, shrimp skin has a high salt content, which is not only bad for health, but also causes calcium loss.
Conclusion: it can be seen that it's not reliable to supplement calcium only by eating shrimp skin. The shrimp skin itself is hard to absorb. It's very little to eat less and supplement calcium. It's not good to eat more.
However, there is a solution to all of the above. Eating saltless shrimp skin powder is a good choice. It not only solves the problem of absorption of shrimp skin, but also avoids the problem of high salt content of shrimp skin. Shrimp skin powder is a good supplement for babies over 6 months.
Calcium supplement can't only look at calcium content
Food calcium can not only look at the content of calcium, promoting the absorption of calcium is also a key factor.
Vitamin D, lactose and proper protein in food are all effective factors to promote calcium absorption, but these conditions are not available in shrimp skin. Simply high calcium content can not solve the fundamental problem.
In contrast, milk calcium effect is very good. Look at the calcium content alone, the milk is not high. However, the lactose, vitamin D and lysine contained in milk can promote the absorption of calcium in milk by human body and play a very good role in calcium absorption. Therefore, it has to be said that milk is the best calcium supplement in food. Every day a bag of 250 grams of milk, you can get nearly 300 mg of calcium.