Zinc Content of Early -Infant Food Sources and Estimated Daily Intake of Zinc.

초기유아식내 Zn함량과 추정일일 Zn섭취량

A survey to determine the zinc content of early-infant food sources was conducted. Collected samples from various lots were human milk from volunteer mothers and infant formula and market milk from markets. The determined results by Atomic absorption Spectrophotometer were as follows: 1. Averages of Zn were 201$\pm$144 $\mu\textrm{g}$/dl in human milk, 2.243$\pm$0.888 mg/100g in infant formula, 292$\pm$90$\mu\textrm{g}$/dl in market milk and showed the decline trend by the lactation periods in human milk. (p<0.01) 2. Estimated daily intake of Zn from human milk was higher than that from infant formula in 3 months old infants.