For example, the most obvious example is oxygen poisoning.
Generally speaking, aluminum phosphorus tumor chlorine is toxic before zinc, and it is not absolutely harmful.
Like iron, zinc and copper, these metal elements are beneficial to human body, but they have adverse effects on human body after excessive use.
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Iron: Iron is the most needed trace element for human body. 27% iron constitutes hemoglobin, 3% iron constitutes myoglobin, and 0.2% iron constitutes various iron-containing enzymes. Hemoglobin can send oxygen to the whole body, and myoglobin has strong binding force with oxygen, which can store some oxygen and release it when skeletal muscle is deprived of oxygen.
Oxygen. The daily iron requirement is10 ~18mg. If the supply is insufficient, iron deficiency anemia will occur.
Zinc: Zinc is a trace element second only to iron. It is the component and activator of more than 200 kinds of zinc-containing enzymes. It plays an important role in nucleic acid metabolism and protein synthesis.
harm
Iron: causes cardiovascular diseases.
Zinc: renal function will be bad, and severe renal failure will occur.
Copper: Too much will make you a fool, which is hard to cure.