Origin and history
Zinc is a trace element essential for the proper functioning of the body. Discovered in the 18th century, it was only recognized as an essential nutrient for humans in the 20th century. Although present in very small quantities in the body, it plays a role in more than 200 enzymatic reactions . Zinc is particularly concentrated in muscles, skin, bones, the liver, and the immune system. It is essential for growth, cell repair, and protection against oxidative stress.