Origin and history
Zinc is a trace element that is essential for the proper functioning of the body. Discovered in the 18th century, it was not recognized as an essential nutrient for humans until the 20th century. Although it is present in very small amounts in the body, it is involved in more than 200 enzymatic reactions. Zinc is particularly concentrated in the muscles, skin, bones, liver, and immune system. It is essential for growth, cell repair, and protection against oxidative stress.