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Shrimps have this sign, the mother is definitely not allowed to buy the whole family to be poisoned

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If the shrimp head turns black, it means it is likely to be contaminated with heavy metals, toxic substances, parasites.
The sign that shrimp contains a lot of toxins is that the head turns black. According to Assoc.Prof. Dr. Nguyen Duy Thinh, Institute of Food Technology, Hanoi University of Technology, when buying shrimp, the housewives should carefully observe the first part. If the shrimp head turns black, there is a possibility of metal contamination, toxic substances, and parasites.

The head is the waste-bearing part of the shrimp and accumulates many heavy metals such as arsenic. So we should not eat shrimp heads. For pregnant women, the toxicity of arsenic heavy metals is often very strong, eating a lot can lead to fetal defects or miscarriage. Big shrimp need clean processing, remove the head to ensure safety.

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To gain weight, people often pump brine shrimp, even glixerin – substances from fat hydrolysis. The impurities pumped shrimp is a suitable medium for bacteria to grow.

If you eat this type of shrimp, you will be at risk of poisoning, dangerous diseases such as cholera, diarrhea, typhoid, digestive disorders.

In addition to the first part, when buying shrimp, mothers need to observe whether the shrimp’s legs are still attached to the body or not, the shrimp meat must be firm. In addition, you should not choose to buy shrimp whose legs have turned black as this is a sign that they are no longer fresh.

Note when processing and eating shrimp

Do not process shrimp in combination with vegetables, tubers and fruits rich in vitamin C. When vitamin C meets toxins available in shrimp, it will spread leading to food poisoning.

Everyone thinks, shrimp shells contain a lot of calcium. However, this is not true. Shrimp shells are hard due to the main component of chitin, a polymer that makes up the shell for most crustaceans. The main source of calcium for shrimp is from shrimp meat. In addition, the shells of some shrimp species are relatively difficult to digest, absolutely not for children to eat because they are prone to choking.

In addition, the black or white thread on the back of the shrimp (also called the shrimp thread) is the digestive tract of the shrimp that contains the stomach and colon. This route is usually only seen in large shrimp. Eating shrimp sugar is not harmful to health, because the bacteria in shrimp thread die at high temperatures when cooked. However, you should remove the shrimp sugar to make the dish cleaner and more secure.

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