Maternal Dietary Iodine Intake

160 μg day and only 4 6 reached the recommended intake in pregnancy by the who i e.

Maternal dietary iodine intake. 250 μg day without including supplements. Dietary iodine requirements have been the subject of considerable recent attention 1 3 there is consensus on the need to take action to eliminate iodine deficiency in those countries where endemic goiter or even cretinism is prevalent 4 5 however in regions where dietary iodine intake is borderline 50 100 μg day it may be necessary to focus on increasing dietary iodine supply. A reduced intake of iodine is indicated by a concentration in urine of less than 50 µg l or less than 0 05 µg iodine mmol creatinine. Eight 3 5 pregnant women and 13 5 7 controls had a reduced iodine creatinine ratio.

Maternal iodine intake from food was mostly determined by the intake of milk and yoghurt spearman s correlation coefficient. Associations between iodine intake and maternal reported child language and motor development and behavior problems were explored by multivariable regression analyses. P 0 001 but iodine intake from food was also related to the calculated total energy intake r 0 56 p 0 001 and to other nutrients and foods. Dietary iodine is rapidly absorbed.

Dri is the general term for a set of reference values used for planning and assessing nutrient. Median uic at the end of the first trimester was 123 µg l 151 µg g when divided by creatinine. The median calculated iodine intake from food was 121 μg day iqr 89 161 μg day table 1 seventy four per cent had an iodine intake from food lower than the estimated average requirement for pregnant women defined by the institute of medicine i e. Iodine intake iodine status uic maternal diet nutritional status fish neurodevelopment bayley scales of infant and toddler development rct pregnancy infant nutrition background iodine is an essential nutrient for the synthesis of thyroid hormones triiodothyronine t 3 and thyroxine t 4.

These values were higher when uie was expressed as iodine concentration. Mean maternal dietary iodine intake during pregnancy was 161 µg day with a 45 8 consumption of iodised salt and a 34 2 intake of iodine supplements at 150 µg day. Iodine supplement use was more commonly reported in. Ation in iodine intake between participants due to few food sources mainly milk and fish and supplement use 17.

16 7 and 20 8 8 respectively. We also found that iodine intake was associ ated with thyroid function in pregnancy and that a low maternal iodine intake in pregnancy was associ ated with poorer child neurocognitive development at ages 3 and 8years 4 18 19. Maternal iodine intake was calculated based on a validated food frequency questionnaire answered during midpregnancy that covered mean intake since the beginning of pregnancy.