What elements are often contained in inorganic salts needed by human body?

Inorganic salts needed by human body often contain elements such as calcium, phosphorus, iron, zinc and sodium.

Inorganic salts are essential nutrients to maintain normal physiological functions of human body. The main inorganic salts are calcium, phosphorus, iron, zinc and sodium. There are more than 100 elements in nature, about 50 of which exist in human body. Hydrogen, oxygen and nitrogen account for 96% of human body weight. These elements are the basic components of sugar, protein, lipids, vitamins and water. In addition to the above four elements, 2 1 element has been proved to be an essential nutrient element for human body, accounting for about 4% of human body weight by weight. People classify the salts in these 2 1 element inorganic compounds as a nutrient-inorganic salts, also known as minerals. There are many calcium, phosphorus, magnesium, sodium, potassium, chlorine and sulfur in the body, which are collectively called macro elements or macro elements. Other 14 elements include iron, iodine, copper, zinc, bismuth, manganese, cobalt, chromium, molybdenum, fluorine, nickel, silicon, vanadium and tin. Because its content in human tissues is very small, only a few milligrams or even a few micrograms per kilogram of body weight, it is called trace elements or trace elements.