Harbin Brand Calcium, Iron and Zinc Oral Liquid is a health care product with the health care function of supplementing calcium, iron, zinc and other trace elements, and its effect varies from person to person with certain differences, so it is not possible to explicitly and directly point out how effective it is. Calcium, iron and zinc oral solution is approved by the State Food and Drug Administration production of health products, its main ingredients include calcium L-lactate, calcium gluconate, zinc gluconate, ferrous gluconate, etc. (which contains 100mg of calcium, 2mg of iron, zinc 1.33mg), excipients for the purified water, sugar, lactic acid and so on. It only has the health care function of supplementing calcium, iron, zinc and other trace elements, not drugs, and can not be used in place of drugs for the treatment of disease, for the above trace element deficiencies of the population is more serious, but also under the guidance of the physician to choose the regular medication for treatment. In addition, this product should not be taken by children under 1 year of age, and should not exceed the recommended amount.