[Selenium status of healthy children under 1 year of age dependent on the type of feeding].

Selenium status was studied in 70 healthy children under 1 year of age being on breastfeeding or bottle feeding. Selenium status was determined by analysis of selenium in baby's hairs and nails. Selenium was also analyzed in breast milk in course of the lactation and in breast milk substitutes. The selenium status was better in breastfed children than in bottle fed ones. The most high level of selenium was found in breast milk in first month of lactation. Selenium status of bottle fed children was depended on selenium level in milk substitutes. It is necessary further investigations on selenium status of children under 1 year age to elaborate and suggest the standard level of selenium contents in milk substitutes.