What's the effect of eating popcorn often?

Popcorn is children's favorite snack, but the lead content in popcorn is high. The lead content per kilogram of popcorn can be as high as 20 mg or more, with an average of 10 mg or more. However, according to China's food hygiene standards, the lead content of cakes should not exceed 0.5 mg.

The high lead content of popcorn is mainly due to a layer of lead or tin alloy in the tin can of rice cakes. When tin cans are heated, some lead directly pollutes food in the form of lead vapor and lead smoke. Especially when popcorn explodes under rapid decompression, lead is more easily adsorbed on popcorn. When lead is absorbed by the human body, it will inevitably do harm to the nervous system, hematopoietic system and digestive system, which can cause children's resistance to decline and growth retardation. Poisoned people will show irritability or loss of appetite, diarrhea or constipation. Children's absorption of lead is several times that of adults, and excessive intake of lead is easy to cause poisoning reactions.