Correction to: Nature Reviews Disease Primers https://doi.org/10.1038/s41572-022-00357-7, published online 19 May 2022.

In the original version of Fig. 2b of this Primer, Colombia, Venezuela and Syria were assigned to incorrect categories of iodine nutrition status. In addition, two boxes in Fig. 5 were incorrectly labelled “hypothyroidism” instead of “hyperthyroidism”. These errors have now been corrected in the HTML and PDF versions of the article.