1, lead, although eating carrots often can reduce the lead content of human body, but this damage is lifelong and irreversible!
2, aluminum, there is no direct harm, but the harm to Shanghai people's brains can not be ignored, especially for newborn children, it often takes more than 50 years to be discovered and incurable;
3, calcium, maybe you will say, are you kidding? How can calcium be? However, we must remove zinc, including them. Just like ginseng, if they take too much supplements at one time or in a short time, it will cause poisoning and even death.
4, iridium, tin poisoning, this kind of poisoning is caused by our excessive use of pure natural items in daily life-tableware, eggs, electrical and electronic products. The main hazards are: iridium glass changes the stability of human genes, making people unable to develop normally, while tin makes people die because of the decline of digestive system function, like a plague! ! !