Next Article in Journal
Impact of Western and Mediterranean Diets and Vitamin D on Muscle Fibers of Sedentary Rats
Next Article in Special Issue
Suboptimal Iodine Status among Pregnant Women in the Oslo Area, Norway
Previous Article in Journal
The Nordic Prudent Diet Reduces Risk of Cognitive Decline in the Swedish Older Adults: A Population-Based Cohort Study
Previous Article in Special Issue
Reduced Educational Outcomes Persist into Adolescence Following Mild Iodine Deficiency in Utero, Despite Adequacy in Childhood: 15-Year Follow-Up of the Gestational Iodine Cohort Investigating Auditory Processing Speed and Working Memory
Article Menu
Issue 2 (February) cover image

Export Article

Open AccessArticle
Nutrients 2018, 10(2), 230; https://doi.org/10.3390/nu10020230

Inadequate Iodine Intake in Population Groups Defined by Age, Life Stage and Vegetarian Dietary Practice in a Norwegian Convenience Sample

1
Division of Infection Control and Environmental Health, Norwegian Institute of Public Health, Oslo 0403, Norway
2
Department of Nursing and Health Promotion, Faculty of Health Sciences, OsloMet—Oslo Metropolitan University, Oslo 0310, Norway
3
Department of Chronic Disease Prevention, National Institute for Health and Welfare, Helsinki 00271, Finland
*
Author to whom correspondence should be addressed.
Received: 29 December 2017 / Revised: 9 February 2018 / Accepted: 14 February 2018 / Published: 17 February 2018
(This article belongs to the Special Issue Iodine and Health throughout the Lifecourse)
Full-Text   |   PDF [984 KB, uploaded 22 February 2018]   |  

Abstract

Inadequate iodine intake has been identified in populations considered iodine replete for decades. The objective of the current study is to evaluate urinary iodine concentration (UIC) and the probability of adequate iodine intake in subgroups of the Norwegian population defined by age, life stage and vegetarian dietary practice. In a cross-sectional survey, we assessed the probability of adequate iodine intake by two 24-h food diaries and UIC from two fasting morning spot urine samples in 276 participants. The participants included children (n = 47), adolescents (n = 46), adults (n = 71), the elderly (n = 23), pregnant women (n = 45), ovo-lacto vegetarians (n = 25), and vegans (n = 19). In all participants combined, the median (95% CI) UIC was 101 (90, 110) µg/L, median (25th, 75th percentile) calculated iodine intake was 112 (77, 175) µg/day and median (25th, 75th percentile) estimated usual iodine intake was 101 (75, 150) µg/day. According to WHOs criteria for evaluation of median UIC, iodine intake was inadequate in the elderly, pregnant women, vegans and non-pregnant women of childbearing age. Children had the highest (82%) and vegans the lowest (14%) probability of adequate iodine intake according to reported food and supplement intakes. This study confirms the need for monitoring iodine intake and status in nationally representative study samples in Norway. View Full-Text
Keywords: iodine status; urinary iodine concentration; probability of adequate iodine intake; iodine-supplement use; children; adolescents; elderly; pregnant; vegetarians; vegans iodine status; urinary iodine concentration; probability of adequate iodine intake; iodine-supplement use; children; adolescents; elderly; pregnant; vegetarians; vegans
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Supplementary material

SciFeed

Share & Cite This Article

MDPI and ACS Style

Brantsæter, A.L.; Knutsen, H.K.; Johansen, N.C.; Nyheim, K.A.; Erlund, I.; Meltzer, H.M.; Henjum, S. Inadequate Iodine Intake in Population Groups Defined by Age, Life Stage and Vegetarian Dietary Practice in a Norwegian Convenience Sample. Nutrients 2018, 10, 230.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Nutrients EISSN 2072-6643 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top