Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
Review
. 2018 Jun 1;6(6):1341-1351.
doi: 10.1002/fsn3.694. eCollection 2018 Sep.

Iodine consumption and cognitive performance: Confirmation of adequate consumption

Hani Choudhry  1   2 , Md Nasrullah  1
Affiliations
Review

Iodine consumption and cognitive performance: Confirmation of adequate consumption

Hani Choudhry et al. Food Sci Nutr. .

Erratum in

  • Corrigendum.
    [No authors listed] [No authors listed] Food Sci Nutr. 2021 Jan 19;9(2):1256. doi: 10.1002/fsn3.2123. eCollection 2021 Feb. Food Sci Nutr. 2021. PMID: 33598209 Free PMC article.

Abstract

Iodine, a dynamic nutrient present in thyroid hormones, is responsible for regulating thyroid function, supporting a healthy metabolism, and aiding growth and development. Iodine is also essential for brain development during specific time windows influencing neurogenesis, neuronal and glial cell differentiation, myelination, neuronal migration, and synaptogenesis. About 1.5 billion people in 130 countries live in areas at risk of iron deficiencies (IDs). Reduced mental ability due to IDs occurs in almost 300 million people. Ensuring the consumption of minimum recommended daily allowances of iodine remains challenging. The effects of ID disorders range from high mortality of fetuses and children to inhibited mental development (cretinism). Poor socioeconomic development and impaired school performance are also notable. Currently, ID disorders are the single greatest contributor to preventable brain damage in fetuses and infants and arrested psychomotor development in children. Iodized salt may help fulfill iodine requirements. Increases in food salt iodization programs can help overcome ID disorders. Dietary plans can be well adjusted to incorporate iodinated foods. Maternal iodine supplementation for offspring requires adequate attention. Fruits, vegetables, bread, eggs, legumes (beans and peas), nuts, seeds, seafood, lean meats and poultry, and soy products provide small quantities of iodine. Nutrient-dense foods containing essential vitamins and minerals such as iodine may confer positive effects. To some extent, fortified foods and daily dietary supplements can be provided for different nutrients including iodine; otherwise, iodine may be consumed in less than the recommended amounts. This review focuses on aspects of adequate iodine consumption to avoid cognitive impairments.

Keywords: cognitive performance; cretinism; dietary plan; food salt iodization program; iodine.

PubMed Disclaimer

Figures

Figure 1
Figure 1
Iodine‐containing foods can contribute to healthy brain formation. TH, thyroid hormone
Figure 2
Figure 2
Recommended dietary allowances of iodine. *Adequate Intake
Figure 3
Figure 3
Iodine‐containing food sources with their values
See this image and copyright information in PMC

References

    1. Assessment of iodine deficiency disorders and monitoring their elimination: A guide for programme managers (2007). Retrieved from http://apps.who.int/iris/bitstream/10665/43781/1/9789241595827_eng.pdf
    1. 25 iodine rich foods you should include in your diet (2014). Retrieved December 4, 2017, from https://www.healthbeckon.com/iodine-rich-foods/
    1. Fortification of foods: Historical development and current practices (2017). Retrieved December 9, 2017, from http://archive.unu.edu/unupress/food/8F154e/8F154E03.htm
    1. Iodine — Health Professional Fact Sheet (2018). Retrieved February 2018, from https://ods.od.nih.gov/factsheets/Iodine-HealthProfessional/
    1. Abel, M. , Ystrom, E. , Caspersen, I. , Meltzer, H. , Aase, H. , Torheim, L. , … Brantsæter, A. (2017). Maternal iodine intake and offspring attention‐deficit/hyperactivity disorder: Results from a large prospective cohort study. Nutrients, 9(11), 1239 10.3390/nu9111239 - DOI - PMC - PubMed

LinkOut - more resources