Abstract
Diets in many countries cannot provide adequate iodine without iodine fortification of salt. Over the past 20 years, the global proportion of households using iodized salt has increased from 70 percent to 89 percent. The number of countries with adequate iodine intake has nearly doubled, from 67 in 2003 to 118 in 2021, reflecting the effectiveness of national salt iodization programs. However, nine countries in Africa still have no or unknown legislation mandating salt iodization. Here we provide an update of iodine nutrition since 2013 (the date of our previous Sight and Life article) in the 54 countries on the African continent.
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