Abstract
Iodine is one of the essential elements and its deficiency has significant health consequences. The optimum urinary iodine level is in range 100-199 µg/L, median value from 100 to 299 µg/L, were considered satisfactory and characterize the population without iodine deficiency, as set by the World Health Organization.
As part of biological monitoring, iodine was monitored in 2015 in the adult population (blood donors, N = 234) and 2016 in the children population (5 and 9 years, N = 400). The optimum urinary iodine level (100-199 µg/L) was found in 42% of study subjects (adult). 34% of study subjects had lower urinary iodine levels.
The median ioduria was 129 µg/L. The results obtained in children pointed to the problem of iodine oversaturation.
The median ioduria was 248 µg/L. The optimum urinary iodine level was found in only 25% of children.
Iodine oversaturation (ioduria above 300 µg/L) was recorded in 34% of children. As few as 7% of children had insufficient iodine saturation.
The saturation of the Czech population by iodine is therefore still necessary to follow, not only in terms of shortage but also of excessive iodine intake.