Zinc is a mineral and is one of the trace elements. It is a component of many enzymes and thus involved in numerous metabolic processes in the body. The mineral helps the body to the production and breakdown of carbohydrates, fats and proteins and therefore has influence on the skin, the immune system, the acid-base balance of the blood and eyes.

Particularly containing zinc are meat, offal, lentils, peas and corn. Several factors can cause a deficiency. Some examples include low consumption of zinc-containing foods, unbalanced diet, prolonged diarrhea or pregnancy and lactation. The consequences are lack of energy, weight loss and depression, and difficulty concentrating. A zinc surplus contrast occurs in the body is very rare.