Shrimp heads and shells, snail intestines, crab gills, membranes surrounding oysters … contain many toxins, high risk of infection when eating.

Seafood parts may contain toxins you should not eat

Nutrition experts recommend eating more seafood than meat. Seafood is rich in nutrients, especially omega-3 fatty acids, eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA). However, not all parts of seafood are edible, but in every species there are parts that should not be eaten.

Here are the parts of seafood that are unhealthy:

The parts of shrimp should not be eaten

Shrimp head: This is a place for shrimp offal such as intestines, feed, gills, respiratory organs, thus potentially causing many pathogenic bacteria and parasites. This is also the first decomposed part when shrimp die. Therefore, shrimp heads are at high risk of infection and toxicity if not yet cooked, and should not be eaten.

Shrimp shells: Associate Professor, Dr. Nguyen Duy Thinh, former officer of the Institute of Biotechnology and Food, Bach Khoa University, said that shrimp is rich in nutrients and rich in calcium, but the shell does not contain calcium. The main source of shrimp’s calcium is mainly in meat, legs and more, while shrimp shells only contain kittin (a polymer) to form crustaceans. This substance is difficult to digest, so limit eating.

Parts of crabs should not be eaten

Crab crab: This part is located under the crab shell, shaped quite like comb and soft teeth. When the crab is exhausted, the amount of water stored in the gills helps the crab to continue breathing and maintain life for a long time. Therefore, the dirt and bacteria in the water can cling to crab crabs, dangerous to health when eaten.

Bowel: In intestine crab contains waste and toxins, so it is best not to eat this part.

Crab stomach: This part is a small, yellow triangle-shaped sac located in the crab’s body. When eating, gently remove this part, avoid rupturing because the stomach contains a lot of dirty sand.

Do not eat fish intestines, fish bile

According to Associate Professor, Dr. Nguyen Xuan Ninh, National Institute of Nutrition, intestinal fish is the dirtiest part, because fish living in the water are easily infected with toxins and microorganisms living under water. In particular, fish are species that eat impurities. These foods pass through the mouth and lie in the gut. In addition, fish intestines are susceptible to parasites, fluke eggs, worm eggs and helminths.

Fish bile is a supplier of enzymes and enzymes, and also contains a lot of toxins. Eating fish bile can be poisoned, septic shock, acute bleeding, even death.

Parts of snails should not be eaten

Snail: This part is located in the tail, at the smallest rotation, contains a lot of dirt, should not be eaten.

Snail brain: This is the part of the snail’s head that contains toxins, which can cause dizziness, food poisoning if eaten in large quantities. Before cooking, you need to clean it up by soaking it in clean water several times. Avoid eating strange snails to avoid poisoning.

Parts of scallops should not be eaten

When eating, you need to remove the thin film surrounding the scallop meat, because this is the dirtiest part of the scallop. In addition, the black stomach part should be removed, this is the organ of the scallop.

Nutrition experts also recommend caution when eating strange seafood, avoid types that may contain toxins such as green octopus octopus, seaweed, starfish … Be careful when feeding children with seafood. Do not eat long-term seafood, limit eating when not cooked well.


Seafood parts may contain toxins you should not eat
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