Zinc gluconate, this product is a white crystalline or granularity of powder; Odourless, taste slightly astringent. Zinc exists in many of the enzymes, such as carbonic anhydrase, respiratory enzyme, acid lactic acid dehydrogenase, superoxide dismutase (sod), alkaline phosphatase, DNA and RNA enzymes, such as for nucleic acid, protein, carbohydrate synthesis and the use of vitamin A is necessary. Zinc can promote growth and development, improve the role of taste. Zinc occurs when a lack of taste and smell bad, anorexia, below the normal growth and intellectual developmen.