Iodine status of breastfed infants and their mothers' breast milk iodine concentration
Publisher's version (útgefin grein) Iodine is an essential nutrient for growth and development during infancy. Data on iodine status of exclusively (EBF) and partially breastfed (PBF) infants as well as breast milk iodine concentration (BMIC) are scarce. We aimed to assess (a) infant iodine nut...
Published in: | Maternal & Child Nutrition |
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Format: | Article in Journal/Newspaper |
Language: | English |
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Online Access: | https://hdl.handle.net/20.500.11815/2313 https://doi.org/10.1111/mcn.12993 |
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ftopinvisindi:oai:opinvisindi.is:20.500.11815/2313 2023-05-15T16:49:04+02:00 Iodine status of breastfed infants and their mothers' breast milk iodine concentration Petersen, Erna Thorisdottir, Birna Thorsdottir , Inga Gunnlaugsson, Geir Arohonka, Petra Erlund, Iris Gunnarsdottir, Ingibjorg Matvæla- og næringarfræðideild (HÍ) Faculty of Food Science and Nutrition (UI) Félagsfræði-, mannfræði- og þjóðfræðideild (HÍ) Faculty of Sociology, Anthropology and Folkloristics (UI) Heilbrigðisvísindasvið (HÍ) School of Health Sciences (UI) Félagsvísindasvið (HÍ) School of Social Sciences (UI) Háskóli Íslands University of Iceland 2020-03-11 e12993 https://hdl.handle.net/20.500.11815/2313 https://doi.org/10.1111/mcn.12993 en eng Wiley info:eu-repo/grantAgreement/EC/H2020/634453 Maternal & Child Nutrition;16(3) https://onlinelibrary.wiley.com/doi/full/10.1111/mcn.12993 Petersen, E., Thorisdottir, B., Thorsdottir, I., Gunnlaugsson, G., Arohonka, P., Erlund, I., Gunnarsdottir, I., 2020. Iodine status of breastfed infants and their mothers' breast milk iodine concentration. Maternal & Child Nutrition. doi:10.1111/mcn.12993 1740-8695 1740-8709 (eISSN) https://hdl.handle.net/20.500.11815/2313 Maternal & Child Nutrition doi:10.1111/mcn.12993 info:eu-repo/semantics/openAccess Diet Human Infant Iodine Lactation Milk Mataræði Brjóstagjöf Joð info:eu-repo/semantics/article 2020 ftopinvisindi https://doi.org/20.500.11815/2313 https://doi.org/10.1111/mcn.12993 2022-11-18T06:52:04Z Publisher's version (útgefin grein) Iodine is an essential nutrient for growth and development during infancy. Data on iodine status of exclusively (EBF) and partially breastfed (PBF) infants as well as breast milk iodine concentration (BMIC) are scarce. We aimed to assess (a) infant iodine nutrition at the age of 5.5 months by measuring urinary iodine concentration (UIC) in EBF (n = 32) and PBF (n = 28) infants and (b) mothers' breast milk iodine concentration (n = 57). Sixty mother–infant pairs from three primary health care centres in Reykjavik and vicinities provided urine and breast milk samples for iodine analysis and information on mothers' habitual diet. The mother–infant pairs were participants of the IceAge2 study, which focuses on factors contributing to infant growth and development, including body composition and breast-milk energy content. The median (25th–75th percentiles) UIC was 152 (79–239) μg/L, with no significant difference between EBF and PBF infants. The estimated median iodine intake ranged from 52 to 86 μg/day, based on urinary data (assuming an average urine volume of 300–500 ml/day and UIC from the present study). The median (25th–75th percentiles) BMIC was 84 (48–114) μg/L. It is difficult to conclude whether iodine status is adequate in the present study, as no ranges for median UIC reflecting optimal iodine nutrition exist for infants. However, the results add important information to the relatively sparse literature on UIC, BMIC, and iodine intake of breastfed infants. We would like to thank all the infants and their mothers for participat-ing in the study. Furthermore, we are grateful to the primary healthcare centres for their part in the recruitment process. The Iceage2study (Growth and Body Composition in Breastfed Infants: Study onAge of Introduction of Complementary Foods in Iceland, clinicaltrials.gov identifier NCT02586571) was funded by the University of Iceland Research fund. Analysis of UIC and BMIC was funded by NordicWorking Group for Diet, Food & Toxicology ... Article in Journal/Newspaper Iceland Opin vísindi (Iceland) Maternal & Child Nutrition 16 3 |
institution |
Open Polar |
collection |
Opin vísindi (Iceland) |
op_collection_id |
ftopinvisindi |
language |
English |
topic |
Diet Human Infant Iodine Lactation Milk Mataræði Brjóstagjöf Joð |
spellingShingle |
Diet Human Infant Iodine Lactation Milk Mataræði Brjóstagjöf Joð Petersen, Erna Thorisdottir, Birna Thorsdottir , Inga Gunnlaugsson, Geir Arohonka, Petra Erlund, Iris Gunnarsdottir, Ingibjorg Iodine status of breastfed infants and their mothers' breast milk iodine concentration |
topic_facet |
Diet Human Infant Iodine Lactation Milk Mataræði Brjóstagjöf Joð |
description |
Publisher's version (útgefin grein) Iodine is an essential nutrient for growth and development during infancy. Data on iodine status of exclusively (EBF) and partially breastfed (PBF) infants as well as breast milk iodine concentration (BMIC) are scarce. We aimed to assess (a) infant iodine nutrition at the age of 5.5 months by measuring urinary iodine concentration (UIC) in EBF (n = 32) and PBF (n = 28) infants and (b) mothers' breast milk iodine concentration (n = 57). Sixty mother–infant pairs from three primary health care centres in Reykjavik and vicinities provided urine and breast milk samples for iodine analysis and information on mothers' habitual diet. The mother–infant pairs were participants of the IceAge2 study, which focuses on factors contributing to infant growth and development, including body composition and breast-milk energy content. The median (25th–75th percentiles) UIC was 152 (79–239) μg/L, with no significant difference between EBF and PBF infants. The estimated median iodine intake ranged from 52 to 86 μg/day, based on urinary data (assuming an average urine volume of 300–500 ml/day and UIC from the present study). The median (25th–75th percentiles) BMIC was 84 (48–114) μg/L. It is difficult to conclude whether iodine status is adequate in the present study, as no ranges for median UIC reflecting optimal iodine nutrition exist for infants. However, the results add important information to the relatively sparse literature on UIC, BMIC, and iodine intake of breastfed infants. We would like to thank all the infants and their mothers for participat-ing in the study. Furthermore, we are grateful to the primary healthcare centres for their part in the recruitment process. The Iceage2study (Growth and Body Composition in Breastfed Infants: Study onAge of Introduction of Complementary Foods in Iceland, clinicaltrials.gov identifier NCT02586571) was funded by the University of Iceland Research fund. Analysis of UIC and BMIC was funded by NordicWorking Group for Diet, Food & Toxicology ... |
author2 |
Matvæla- og næringarfræðideild (HÍ) Faculty of Food Science and Nutrition (UI) Félagsfræði-, mannfræði- og þjóðfræðideild (HÍ) Faculty of Sociology, Anthropology and Folkloristics (UI) Heilbrigðisvísindasvið (HÍ) School of Health Sciences (UI) Félagsvísindasvið (HÍ) School of Social Sciences (UI) Háskóli Íslands University of Iceland |
format |
Article in Journal/Newspaper |
author |
Petersen, Erna Thorisdottir, Birna Thorsdottir , Inga Gunnlaugsson, Geir Arohonka, Petra Erlund, Iris Gunnarsdottir, Ingibjorg |
author_facet |
Petersen, Erna Thorisdottir, Birna Thorsdottir , Inga Gunnlaugsson, Geir Arohonka, Petra Erlund, Iris Gunnarsdottir, Ingibjorg |
author_sort |
Petersen, Erna |
title |
Iodine status of breastfed infants and their mothers' breast milk iodine concentration |
title_short |
Iodine status of breastfed infants and their mothers' breast milk iodine concentration |
title_full |
Iodine status of breastfed infants and their mothers' breast milk iodine concentration |
title_fullStr |
Iodine status of breastfed infants and their mothers' breast milk iodine concentration |
title_full_unstemmed |
Iodine status of breastfed infants and their mothers' breast milk iodine concentration |
title_sort |
iodine status of breastfed infants and their mothers' breast milk iodine concentration |
publisher |
Wiley |
publishDate |
2020 |
url |
https://hdl.handle.net/20.500.11815/2313 https://doi.org/10.1111/mcn.12993 |
genre |
Iceland |
genre_facet |
Iceland |
op_relation |
info:eu-repo/grantAgreement/EC/H2020/634453 Maternal & Child Nutrition;16(3) https://onlinelibrary.wiley.com/doi/full/10.1111/mcn.12993 Petersen, E., Thorisdottir, B., Thorsdottir, I., Gunnlaugsson, G., Arohonka, P., Erlund, I., Gunnarsdottir, I., 2020. Iodine status of breastfed infants and their mothers' breast milk iodine concentration. Maternal & Child Nutrition. doi:10.1111/mcn.12993 1740-8695 1740-8709 (eISSN) https://hdl.handle.net/20.500.11815/2313 Maternal & Child Nutrition doi:10.1111/mcn.12993 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/20.500.11815/2313 https://doi.org/10.1111/mcn.12993 |
container_title |
Maternal & Child Nutrition |
container_volume |
16 |
container_issue |
3 |
_version_ |
1766039131869151232 |