Groufh-Jacobsen , S., Hope Abel , M., Brantsæter , A.L., Andersson , M., Meyer , H.E. and Henjum , S. 2023. National monitoring of iodine, sodium, and vitamin D status in toddlers and women of childbearing age – results and lessons learned from a pilot study in Norway. Food & Nutrition Research. 67, (Aug. 2023). DOI:https://doi.org/10.29219/fnr.v67.9088.