It can cause obesity, affect appetite and so on.

The puffed food more salt, more sugar, more MSG, the taste is very attractive, but long-term consumption of puffed food will affect people's appetite, especially in the growth and development stage of the children, it is very easy to "addicted" to puffed food without eating staple food. The calories in the puffed food is more, long-term consumption will cause obesity, especially fat.

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Puffed foods are typically fried, baked and extruded at high temperatures, which can be high in lead. Because of the high temperatures, the lead in the metal pipes that process the food will vaporize and get on the puffed food. Lead that enters the body is difficult to get out of the body. When the lead in the blood reaches a certain amount, it affects the hematopoietic system, the cardiovascular system, the digestive system, and the nervous system. The person will then experience anemia, vomiting, anorexia, and sluggishness.

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Puffed foods, because they contain additives like bulking agents, are puffy in size. The bags of puffed food also contain a certain amount of aluminum. The human body's ability to discharge aluminum is limited, in general, can only be discharged 10% to 15% of the aluminum, the remaining aluminum will be gathered in the human body, and the human body in the enzymes, proteins and other components of the combination of the human body, affecting human health. Long-term consumption of puffed food can damage the normal function of the brain, and even lead to dementia, slow development, osteochondrosis and so on.