Abstract: Children's nutrition is very important for the healthy growth and development of the child, but it affects the health of the individual as well later in adulthood. For the production of baby food, commonly available on the market are used raw materials consistently grown under very strict supervision of specially designated for children's nutrition. It shall also apply to the more stringent standards on fertilizer, soil treatment during growth, harvesting, storage and process for the production of baby food. At work, we have focused on monitoring the content of Hg in the 12 samples of baby food, available in the sales network of the Slovak Republic and comparing it with the Highest permissible quantity (0.05 mg.kg-1). On the basis of the findings shows that the content of Hg in the one sample exceeded the HPQ, the content of Hg was in the range 0.6 - 20.4% of the HPQ.