Iodine Global Network (IGN)

IODINE Global Network

Global iodine scorecard and map

If you have questions or would like to share new data from national IDD/USI surveys for inclusion in the next Scorecard and map update, please contact us.

Global Iodine Scorecard

Global map of iodine nutrition

Global map of legislation on salt iodization

This map was created to represent the current status of legislation on fortification of salt. It will be updated as new information becomes available.

To the best of our knowledge, this data is correct as of 28 June 2016. Please contact us if you think there are inaccuracies and would like to share new data.

Selected resources

Global Iodine Scorecard 2016: moving toward optimal global iodine status (PDFAchtung Link öffnet sich in einem neuen Fenster)
IDD Newsletter 4/2016
The IGN Global Scorecard has been updated with 19 new nationally representative surveys in school-age children. Out of 127 countries with data, only 15 countries now report low iodine intake in children. The new Scorecard also brings the first ever global estimate of iodine status in pregnant women.

Two decades of progress against iodine deficiency: 1993-2015 (YouTubeAchtung Link öffnet sich in einem neuen Fenster)
These maps show global progress made at the national level since the first global scorecard was published in 1993 to the most recent update in January 2015. The darker the colour, the more severe the iodine deficiency as a public health problem.

Global Iodine Nutrition: Where Do We Stand in 2013? (PDFAchtung Link öffnet sich in einem neuen Fenster)
Elizabeth N. Pearce, Maria Andersson, and Michael B. Zimmermann
THYROID, Volume 23, Number 5, 2013

Global Iodine Status in 2011 and Trends over the Past Decade (PDFAchtung Link öffnet sich in einem neuen Fenster)
Maria Andersson, Vallikkannu Karumbunathan, and Michael B. Zimmermann
The Journal of Nutrition 2012

Update on iodine status worldwide (PDFAchtung Link öffnet sich in einem neuen Fenster)
Michael B. Zimmermann and Maria Andersson
Curr Opin Endocrinol Diabetes Obes 2012, 19:382–387

Global Iodine Scorecard 2014: Number of iodine-deficient countries more than halved in the past decade (PDFAchtung Link öffnet sich in einem neuen Fenster)
IDD Newsletter 1/2015
Before 1990, only a handful of countries were iodine sufficient. As a result of remarkable efforts in the past two and a half decades, the latest global estimate of iodine nutrition looks more optimistic than ever. Here is a summary of the most important changes since 2012.


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