The head of crayfish absorbs and processes the most toxins, and it is also the place where pathogens and parasites are easily accumulated.

The head of shrimp mainly contains various organs of shrimp, such as heart, liver, stomach and ovary. These organs may be rich in substances in the growth environment of shrimp, especially heavy metals. Eat shrimp often, or don't eat shrimp head, or eat it after processing. If you buy live shrimp, you can choose to keep it in water for a while and let the shrimp excrete before eating.

Extended data:

Nutritional value of shrimp;

1, shrimp is nutritious, soft and easy to digest, and it is a good food for people who are weak and need to be nursed back to health after illness;

2. Shrimp is rich in magnesium, which plays an important role in regulating heart activity and protecting cardiovascular system. It can reduce the cholesterol content in blood, prevent arteriosclerosis, dilate coronary artery, and help prevent hypertension and myocardial infarction.

3. Shrimp has a strong breast enhancement effect and is rich in phosphorus and calcium, especially suitable for children and pregnant women;

4. A very important substance in shrimp is astaxanthin, which is the component with red surface color. Astaxanthin is the strongest antioxidant found. The darker the color, the higher the astaxanthin content.

People's Network-Do you want to go to the shrimp shop to eat shrimp? Is it harmful to always eat shrimp line and shrimp head?

People's Network-Not everyone can eat shrimp, so don't eat too much shrimp head toxin.

Baidu encyclopedia-river shrimp