Iodine knowledge is positively associated with dietary iodine intake among women of childbearing age in the UK and Ireland
Adequate I intake is important before conception and during pregnancy for optimal infant neurodevelopment. Recent studies have highlighted the prevalence of I deficiency in the UK and Ireland. It is possible that optimal I intake may be impeded by a poor knowledge of I nutrition. This study aimed to investigate I knowledge among women of childbearing age in the UK and Ireland and to determine whether a relationship exists between I knowledge and dietary I intake. Females (aged 18–45 years) were invited to complete an online questionnaire, which assessed knowledge of I and estimated dietary I intake using a FFQ. A total of 520 females of childbearing age completed the study. I knowledge was poor; only one-third (32 %) of the participants correctly identified pregnancy as the most important stage of the lifecycle for I, and 41 % of participants could not correctly identify any health problem related to I deficiency. The median daily I intake was estimated as 152 µg/d. Almost half (46 %) of the participants failed to meet dietary recommendations (140 µg/d) for I. A higher dietary I intake was positively associated with greater I knowledge (r 0·107; P=0·016). This study suggests that knowledge of I nutrition is low among women of childbearing age, and those with a greater knowledge of I nutrition had a higher dietary I intake. Initiatives to educate women of childbearing age on the importance of I nutrition should be considered as part of a larger public health strategy to address I deficiency.
O’Kane, S.M., Pourshahidi, L.K., Farren, K.M., et al. (2016) ‘Iodine knowledge is positively associated with dietary iodine intake among women of childbearing age in the UK and Ireland’. British Journal of Nutrition. https://www.cambridge.org/core/journals/british-journal-of-nutrition/article/iodine-knowledge-is-positively-associated-with-dietary-iodine-intake-among-women-of-childbearing-age-in-the-uk-and-ireland/4C313991C56AC5CAF9276C253E4134F7