Processing popcorn iron container wall contains a certain amount of lead, lead melting point and boiling point are relatively low, in the closed heating, lead will be volatile and penetrate into the popped grain. According to the actual investigation of the relevant departments, found that every 100 grams of popcorn contains up to 230 micrograms of lead or more. Because children are more sensitive to the toxicity of lead and the intestinal barrier function is poor, so lead is more harmful to children. The World Health Organization (WHO) specifies that the daily intake of lead from food for children should not exceed 100 micrograms. That is, as long as you eat 30 grams of popcorn per day, the amount of lead has been close to 100 micrograms, in addition, coupled with the environmental pollution of the children, every day there will be a certain amount of lead through the food or dust through the digestive tract, the respiratory tract into the body, which is enough to produce a serious health of children's Weiribu.
The barrier function of children's body is relatively poor, especially the blood-brain barrier is not perfect, the brain function is still immature, excessive lead intake will not only hinder the growth of children's height and weight, but also adversely affect the intellectual development of children, which is also an important cause of children's learning difficulties and hyperactivity. In addition, high blood lead will also interfere with the formation of hemoglobin and weaken the body's resistance. As a snack, frequent consumption of popcorn will affect the appetite of children. Therefore, children should minimize or not eat popcorn.