Zinc is a vital element in life, and it plays the role of "life gear" in the process of material transformation and energy exchange. It is necessary to form a variety of protein. The zinc content in the visual part of eyeball is as high as 4%, which shows that it has some special function. Zinc is ubiquitous in food. As long as there is no partial eclipse, the human body generally does not lack zinc.
Copper is also very important to human body, and it is a unique and extremely effective catalyst in biological systems. Copper is the active component of more than 30 kinds of enzymes and plays an important role in regulating human metabolism. It is reported that coronary heart disease is related to copper deficiency. Copper is not easy to remain in the human body and needs to be ingested and supplemented frequently. Tea contains trace copper, so drinking tea often is beneficial.
Chromium is an essential element to participate in the sugar or fat metabolism of insulin and to maintain normal cholesterol.
Cobalt is an essential component of vitamin B 12, and B 12 is an essential component of red blood cell formation.
Manganese participates in many enzyme-catalyzed reactions, which are inseparable from all living things.
Molybdenum is a component of an enzyme that catalyzes the conversion of purine to uric acid. Molybdenum is also necessary for the energy exchange process. Trace molybdenum is a component of eye pigment. Pod, Chinese cabbage and Chinese cabbage contain more molybdenum. Eating more vegetables is good for your eyes.