Population-Level Changes in Folate, Iodine, and Vitamin D Status over More than 20 Years: Biomarker Data from the Cross-Sectional National Health and Nutrition Examination Survey (NHANES 1999-2000 through August 2021-August 2023)
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Background: The National Health and Nutrition Examination Survey (NHANES) has monitored biomarkers for 4 key nutrients important for pregnancy outcomes, neurological development, and healthy growth-folate, vitamin D, iodine, and ... ...
