Iodine Global Network (IGN)

09.06.2021   IDD Newsletter 2/2021

In this issue:
  • Most Moroccan children now have enough iodine
  • Combined monitoring of iodine and sodium intakes in Belgium
  • The 2021 Global Scorecard of Iodine Nutrition
  • Iodine supplements benefit pregnant women in Iran
  • The thyroid, the organ below the radar
  • Iodine sufficiency in children in the Seychelles
  • Despite conflict, nearly 2/3rds of households in Syria have adequate iodized salt
  • Puerto Rican pregnant women are iodine sufficient but their iodine awareness is low
  • Tibetan adults are now iodine sufficient

Meetings & Announcements:
  • New database on the iodine content of U.S. Foods
  • China celebrated National IDD Control Day on May 15

Articles

Most Moroccan children now have enough iodine

(Excerpted from: El Ammari L, et al. Children 2021, 8, 240. https://doi.org/10.3390/children8030240)
Rural mountainous areas in Morocco are not adequately covered by iodized salt. The aim of this study was to assess the current iodine nutrition in a nationally representative sample of 6–12-year-old school-aged children in Morocco by measuring the UIC in spot urine samples. Given the growing proportion of salt coming from processed foods in Morocco and the national policy to reduce salt consumption by 10% by 2025, it may be important to extend mandatory salt iodization to include all salt used in the food industry.

Combined monitoring of iodine and sodium intakes in Belgium

(Excerpted from: Vandevijvere S, et al. European Journal of Clinical Nutrition (2021) 75:689–696)
In the years 1985–1998, it was first noted that mild iodine deficiency (MID) was a public health problem among school-aged children in Belgium. In 2018 the sixth Belgian Health Interview Survey (HIS) was organized. This study, based on a representative sample of Belgian adults, showed that the median UIC (94 g/L) was below the WHO threshold for population iodine sufficiency (100 g/L), likely indicating MID, while population salt intake was substantially higher than the WHO recommendation of 5 g/day.

The 2021 Global Scorecard of Iodine Nutrition

IGN Scorecard presents the most recent UIC data for 194 WHO Member States, plus Liechtenstein and Palestine.

Iodine supplements benefit pregnant women in Iran

(Excerpted from: Delshad H, et al. Journal of Endocrinological Investigation)
Iran has an effective and sustained iodized salt program and has been considered as iodine replete since 2000. This study included 1200 pregnant women (400 women from each trimester), attending the antenatal care clinics of mother and child healthcare centers in 12 provinces of Iran. The results of this study indicated that iodine supplementation with at least 150 g of iodine per day appeared to improve the iodine intake of pregnant women in Iran, resulting in a mUIC indicating iodine sufficiency and improved thyroid function.

The thyroid, the organ below the radar

(Teofilo O.L. San Luis Jr. Global Health Policy Opinion - 25/May/2021.)
Thyroid disorders rarely get the publicity of more well-known disease groups, but can lead to tragic consequences, especially in mothers and children.

Iodine sufficiency in children in the Seychelles

(Viviane Baeriswyl, Michael Zimmermann)
The Republic of Seychelles is a group of 115 islands located east of the African coast in the Indian Ocean. Overall, school-aged children in Victoria, the capital city of the Seychelles are iodine sufficient. Future studies should investigate the iodine status of children living on other islands of the Seychelles, as well as the iodine status of pregnant women, another vulnerable group.

Despite conflict, nearly 2/3rds of households in Syria have adequate iodized salt

(From: Nutrition SMART Survey Report, Syria, March - April 2019)
This report presents the findings of the 2019 SMART Survey conducted in 13 Governorates out of 14 Governorates in Syria between March and April 2019. Overall, the data shows an increase the rate of salt iodation from 38.7% in the 2016 SMART survey to a current level of 63%.

Puerto Rican pregnant women are iodine sufficient but their iodine awareness is low

(Excerpted from: Rodriguez-Diaz E, et al. 27 (2021) 241e244.)
There are only very limited data from the Caribbean islands regarding iodine nutritional status. This sample of pregnant women in Puerto Rico were iodine-sufficient based on their median UIC. This is the first study to measure UIC in this population.

Tibetan adults are now iodine sufficient

(Excerpted from: Zou Y et al. Nutrition 2021 (in press))
Tibet, a region in central Asia with average altitudes >4000 m, historically had severe iodine deficiency and a high prevalence of thyroid diseases, especially among those living in the territory’s eastern and southern areas. This multicenter cross-sectional study found that the iodine status of adults in Tibet is adequate, and most adults have normal thyroid function.