Do you make it? High brain mercury content

I do not know when, when the family eat fish together, everyone will give the fish brain to give children to eat. Adults think that eating can make it up? Eating fish brain can make up for children's brains, and children who are growing up are in the stage of brain and mental development. Of course, the best fish brain should be left for children to eat, thinking that eating fish brains will be smarter. Is this true? Can you eat the brain of a fish brain? I am afraid that the mother who knows the truth will never dare to eat fish brains!

Why not let the baby eat fish brains, because the brain contains a kind of dangerous heavy metal mercury, the Nanjing Center for Disease Control and Prevention studied the most common carp in supermarkets and farmers' markets. 400g, 350g, 200g and 100g of squid were marketed and fish, fish skin, fish brain and fish were determined.

The test results showed that the greater the age of fish, the more mercury was accumulated in the fish brain and fish skin, and the mercury content of 200 grams or less of carp, fish meat, fish roe, fish skin, fish brain was very low, and the numerical difference was not obvious. Both are lower than 0.02mg/kg, far lower than the national limit (Hg ≤ 0.5mg/kg), so small squid below half a catty can rest assured to eat.

More than half a catty fish is different, the mercury content of fish and fish does not change significantly, but the amount of mercury accumulation in fish brain and fish skin increased significantly. 350 grams of carp, the fish skin and fish brain mercury content increased slightly; and 400 grams of carp, the mercury content of fish skin than 200 grams below the rise of 5 times, the fish brain's mercury content as much as 20 times. This shows that you should be careful when you eat about a pound of fish.

The order of mercury content in various parts of fish is: fish head> fish skin> fish meat> fish roe. Taking 400 grams of carp as an example, the fish brain has a mercury content of 0.36 mg/kg, which is 20 times that of fish, 15 times that of fish, and 6 times that of fish skin. However, this rule does not apply to salmon below 200 g.

When the fish is heated, the mercury content decreases. A comparative study of raw fish and cooked fish found that the mercury content in fish brain, fish skin and fish cannot be reduced with heat. However, after the fish were heated, the mercury content was greatly reduced to below 0.008 mg/kg. It can be seen that after cooked, the fish can be eaten by children.

Therefore, when we buy fish, we recommend that when buying squid, it is best to buy half a catty or less. Such a small fish carp age, the content of methyl mercury in the body is very low, pregnant women and children can rest assured that the food. If you buy more than two pounds of catfish, fish and fish are safe, but it is best not to eat fish heads.

It is true that children should eat more fish. Fish that are too small are not eaten by fish brains, fish that are slightly larger, and fish brains are not allowed to eat for children! For the public opinion that "children eat fish brains are smarter", don't listen to them! Fish brain is generally more likely to accumulate heavy metals, children should not eat, adults must eat less fish head!