Iodine Excess in Brazilian children - 70% of population

[wendy]

A Cesar J, S Santos I, E Black R, Chrestani MAD, Duarte FA, Nilson EAF - "Iodine Status of Brazilian School-Age Children: A National Cross-Sectional Survey" Nutrients 12(4):1077 (2020). doi: 10.3390/nu12041077
https://pmc.ncbi.nlm.nih.gov/articles/PMC7230565/

"The MUIC arrived at 276.7 µg/L (25th percentile = 175.5 µg/L and 75th percentile = 399.71 µg/L). In Brazil as a whole, the prevalence of mild, moderate, and severe deficit was 6.9%, 2.6%, and 0.6%, respectively. About one-fifth of the students (20.7%) had adequate iodine concentration, while 24.9% and 44.2% had more than adequate or excessive concentration, respectively. The prevalence of iodine deficits was significantly higher among younger female students from municipal public schools living in rural areas with the lowest BMI. The median urine iodine concentration showed that Brazilian students have an adequate nutritional intake, with a significant proportion of them evidencing overconsumption of this micronutrient."