There are many kinds of drugs to supplement trace elements, according to the lack of trace elements treatment, the common lack of trace elements for calcium, zinc, iron, silicon, etc., supplementation of drugs such as calcium carbonate, zinc gluconate, polysaccharides and iron composite capsule. 1. Calcium: lack of calcium trace elements are generally used calcium carbonate, calcium gluconate, etc., these two drugs contain calcium is relatively high, but also can take vitamin D2, vitamin D3 and other drugs, vitamin D can promote calcium absorption from the gastrointestinal tract. 2. Zinc: supplemental zinc ions can take zinc gluconate, zinc glycyrrhizate, zinc sulfate and other drugs, can promote growth and development, enhance gastrointestinal peristalsis, improve immunity, in the ordinary life to eat more nuts, seafood. 3. Iron: supplemental iron ions can take ferrous sulfate, iron protein succinate, polysaccharide iron complex capsule and other drugs, at the same time in ordinary life to consume more animal offal, red meat and so on. If you suspect that there is a lack of trace elements, it is recommended to go to the hospital for trace element examination, clear cause and timely symptomatic treatment.