Fuente: WIPO "milk" The present invention relates to a preparation method of zinc-enriched sterilized milk. It is made by adding zinc gluconate (or zinc sulfate or zinc lactate) in raw material milk according to the ratio of 5-8mg (zinc)/kg (milk) and making the above-mentioned materials pass through the processes of mixing, stirring, high-temp. instantaneous sterilizing and packaging. Said invention is simple in technological process and easy to produce. The invented milk doesn't contain phytic acid and has high-quality protein, so that the zinc in the invented milk doesn't lose and easy of to be digested and assimilated by human body.