Iodine content of frequently used prenatal and adult multivitamins in Switzerland.
Details
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UNIL restricted access
State: Public
Version: Final published version
License: CC BY 4.0
UNIL restricted access
State: Public
Version: Final published version
License: CC BY 4.0
Serval ID
serval:BIB_37B26EA76DA1
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Iodine content of frequently used prenatal and adult multivitamins in Switzerland.
Journal
Frontiers in endocrinology
ISSN
1664-2392 (Print)
ISSN-L
1664-2392
Publication state
Published
Issued date
2022
Peer-reviewed
Oui
Volume
13
Pages
1041232
Language
english
Notes
Publication types: Journal Article ; Research Support, Non-U.S. Gov't
Publication Status: epublish
Publication Status: epublish
Abstract
Iodine is essential for the biosynthesis of thyroid hormones, which are crucial for intrauterine growth and fetal neurocognitive development. Iodine requirements increase during pregnancy and lactation. The World Health Organization and the Swiss Confederation recommend a total daily iodine intake of 250 µg of iodine during preconception, pregnancy and lactation. To assure this goal, several professional organizations recommend complementing the nutritional iodine intake with supplements containing 150 μg of iodine daily.
Prenatal and adult multivitamins widely available in Switzerland were compiled to determine their iodine content. Obstetricians verified that the list includes the most frequently prescribed supplements in Switzerland.
A total of 44 adult multivitamin supplements were identified, 23 of which are specifically intended for women planning pregnancy, pregnant, or breastfeeding. Seven out of 23 (30.4%) prenatal multivitamins products, and 12/21 (57.1%) adult multivitamins contained no iodine. Among all the products, only 18/44 (40.9%) contain 150 µg of iodine or more.
Several widely used products contain no or insufficient amounts (<150 ug) of iodine. Providers need to be informed about the variability in iodine content of supplements and established recommendations, and manufacturers of prenatal supplements should assure that their products contain iodine in adequate amounts.
Prenatal and adult multivitamins widely available in Switzerland were compiled to determine their iodine content. Obstetricians verified that the list includes the most frequently prescribed supplements in Switzerland.
A total of 44 adult multivitamin supplements were identified, 23 of which are specifically intended for women planning pregnancy, pregnant, or breastfeeding. Seven out of 23 (30.4%) prenatal multivitamins products, and 12/21 (57.1%) adult multivitamins contained no iodine. Among all the products, only 18/44 (40.9%) contain 150 µg of iodine or more.
Several widely used products contain no or insufficient amounts (<150 ug) of iodine. Providers need to be informed about the variability in iodine content of supplements and established recommendations, and manufacturers of prenatal supplements should assure that their products contain iodine in adequate amounts.
Keywords
Humans, Pregnancy, Adult, Female, Iodine, Switzerland, Vitamins, Dietary Supplements, Nutritional Status, iodine deficiency, multivitamins, pregnancy, thyroid function
Pubmed
Web of science
Open Access
Yes
Create date
28/11/2022 15:47
Last modification date
10/08/2023 7:00