Iodine content of frequently used prenatal and adult multivitamins in Switzerland
BackgroundIodine 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 iodin...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2022-11-01
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| Series: | Frontiers in Endocrinology |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fendo.2022.1041232/full |
| _version_ | 1811158625613250560 |
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| author | Mandy Gfeller Gentiane Colque Peter A. Kopp Peter A. Kopp |
| author_facet | Mandy Gfeller Gentiane Colque Peter A. Kopp Peter A. Kopp |
| author_sort | Mandy Gfeller |
| collection | DOAJ |
| description | BackgroundIodine 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.MethodsPrenatal 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.ResultsA 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.ConclusionSeveral 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. |
| first_indexed | 2024-04-10T05:27:18Z |
| format | Article |
| id | doaj.art-bf0932c9c40248f5aaff5197ea08b3c1 |
| institution | Directory Open Access Journal |
| issn | 1664-2392 |
| language | English |
| last_indexed | 2024-04-10T05:27:18Z |
| publishDate | 2022-11-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Endocrinology |
| spelling | doaj.art-bf0932c9c40248f5aaff5197ea08b3c12023-03-07T15:53:45ZengFrontiers Media S.A.Frontiers in Endocrinology1664-23922022-11-011310.3389/fendo.2022.10412321041232Iodine content of frequently used prenatal and adult multivitamins in SwitzerlandMandy Gfeller0Gentiane Colque1Peter A. Kopp2Peter A. Kopp3Division of Endocrinology, Diabetes and Metabolism, University Hospital of Lausanne and University of Lausanne, Lausanne, SwitzerlandEndocrinology, Diabetes and Nutrition, Médical Center EndoDia-Centre, Biel-Bienne, SwitzerlandDivision of Endocrinology, Diabetes and Metabolism, University Hospital of Lausanne and University of Lausanne, Lausanne, SwitzerlandDivision of Endocrinology, Metabolism and Molecular Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL, United StatesBackgroundIodine 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.MethodsPrenatal 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.ResultsA 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.ConclusionSeveral 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.https://www.frontiersin.org/articles/10.3389/fendo.2022.1041232/fullIodineiodine deficiencypregnancythyroid functionmultivitamins |
| spellingShingle | Mandy Gfeller Gentiane Colque Peter A. Kopp Peter A. Kopp Iodine content of frequently used prenatal and adult multivitamins in Switzerland Frontiers in Endocrinology Iodine iodine deficiency pregnancy thyroid function multivitamins |
| title | Iodine content of frequently used prenatal and adult multivitamins in Switzerland |
| title_full | Iodine content of frequently used prenatal and adult multivitamins in Switzerland |
| title_fullStr | Iodine content of frequently used prenatal and adult multivitamins in Switzerland |
| title_full_unstemmed | Iodine content of frequently used prenatal and adult multivitamins in Switzerland |
| title_short | Iodine content of frequently used prenatal and adult multivitamins in Switzerland |
| title_sort | iodine content of frequently used prenatal and adult multivitamins in switzerland |
| topic | Iodine iodine deficiency pregnancy thyroid function multivitamins |
| url | https://www.frontiersin.org/articles/10.3389/fendo.2022.1041232/full |
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