Iodine intakes and status in Irish adults is there cause for concern?

Breige A McNulty, Anne P Nugent, Janette Walton, Albert Flynn, Christina Tlustos, Michael J Gibney

Research output: Contribution to journalArticle

12 Citations (Scopus)
149 Downloads (Pure)

Abstract

I is an important mineral for health, required for the production of key thyroid hormones, which are essential for cellular metabolism, growth and physical development. Hence, adequate I is crucial at all stages of life, but imperative during pregnancy for fetal brain development and during a child's early life for neurodevelopment. Within Ireland, limited information exists on population I intakes and status. Therefore, the purposes of the present analysis were to estimate dietary I intakes and to analyse urinary iodine (UI) status using the cross-sectional National Adult Nutrition Survey 2008-2010 and the most recent Irish Total Diet Study. Median I intakes in the total population (n 1106) were adequate with only 26 % of the population being classified as below the estimated average requirement (EAR). Milk consumption was the major source of I in the diet, contributing 45 % to total intake. Likewise, median UI concentrations (107 µg/l) indicated 'optimal' I nutrition according to the WHO cut-off points. In our cohort, 77 % of women of childbearing age (18-50 years) did not meet the EAR recommendation set for pregnant women. Although I is deemed to be sufficient in the majority of adult populations resident in Ireland, any changes to the current dairy practices could significantly impact intake and status. Continued monitoring should be of priority to ensure that all subgroups of the population are I sufficient.

Original languageEnglish
Pages (from-to)422-431
JournalThe British journal of nutrition
Volume117
Issue number3
Early online date20 Feb 2017
DOIs
Publication statusEarly online date - 20 Feb 2017

Keywords

  • Adolescent
  • Adult
  • Aged
  • Aged, 80 and over
  • Animals
  • Cross-Sectional Studies
  • Deficiency Diseases
  • Diet
  • Feeding Behavior
  • Female
  • Humans
  • Iodine
  • Ireland
  • Male
  • Middle Aged
  • Milk
  • Nutrition Policy
  • Nutrition Surveys
  • Nutritional Requirements
  • Nutritional Status
  • Pregnancy
  • Pregnancy Complications
  • Trace Elements
  • Young Adult
  • Journal Article
  • Research Support, Non-U.S. Gov't

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