Vitamin D status during normal pregnancy and postpartum. A longitudinal study in 141 Danish women
Abstract
BACKGROUND/OBJECTIVES: To assess vitamin D status during normal pregnancy and in the postpartum lactation period. SUBJECTS/METHODS: The study comprised 141 healthy, ethnic Danish women with normal pregnancies, who were residents in Greater Copenhagen. Serum 25-hydroxy-vitamin D2+D3(25-OH-vitamin D) was measured at 18, 32 and 39 weeks' gestation and 8 weeks postpartum. RESULTS: There was a significant increase in 25-OH-vitamin D from 18 to 32 weeks' gestation (P=0.0001) followed by a significant decrease from 32 to 39 weeks (P=0.001) as well as from 39 weeks to 8 weeks postpartum (P<0.0001). At 18, 32, 39 weeks' gestation and 8 weeks postpartum, median 25-OH-vitamin D values were 77, 98, 91, and 73 nmol/L, respectively. During pregnancy and postpartum, none of the women displayed severe vitamin D deficiency (values <13 nmol/L). Between 1.4% and 4.3% of the participants displayed moderate vitamin D deficiency (values 13-24 nmol/L), 16-19% displayed vitamin D insufficiency (values 25-50 nmol/L), 77-84% had values >50 nmol/L and 0.7-2.8% had values >200 nmol/L. CONCLUSIONS: Low vitamin D status is frequent among pregnant Danish women, especially in late pregnancy and during lactation. Median dietary intake of vitamin D in women of reproductive age was 2.4 μg/day (10-90 percentile range=1.4-5.0). The recommendations for vitamin D supplementation prior to conception, during pregnancy and lactation should be reconsidered.
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The available data suggest that, even in industrialized countries, some infants who are breastfed may not be receiving optimal amounts of certain micronutrients, as the levels found in breastmilk, maternal serum or urine did not always reach recommended levels in all women.
“The available data suggest that, even in industrialized countries, some infants who are breastfed may not be receiving optimal amounts of certain micronutrients, as the levels found in breastmilk, maternal serum or urine did not always reach recommended levels in all women [73,85,86,87,88,89,90,91,92,93,94,95].”
From Immune function and micronutrient requirements change over the life course (2018) · cites this paper as [88]
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Immune function and micronutrient requirements change over the life course
Maggini, S., Pierre, A., & Calder, P. C. (2018) · Nutrients · doi:10.3390/nu10101531 · Cited by 710 · see citing works
Schaefer, E. (2016) · Journal of Nutritional Disorders & Therapy · doi:10.4172/2161-0509.1000199 · Cited by 12 · see citing works
“The greatest insufficiency was observed in China [44-46], Japan [47] and the USA [38,48], but was less apparent in Denmark [40], Sweden [39], New Zealand [42] and Australia [43].”
Background
- Authors
- Milman, N., Hvas, A.-M., & Bergholt, T.
- Affiliations
- University of Copenhagen (DK)
- Aarhus University Hospital (DK)
- Corresponding author
- Milman, Nils
- Venue
- Journal of Perinatal Medicine
- Publisher
- Walter de Gruyter GmbH
- Published
- 2012-01-01
- Volume
- 40
- Issue
- 1
- Pages
- 57-61
- ISSN
- 0300-5577 (ISSN-L)
- 1619-3997
- OpenAlex
- W2318596056
- Cited by
- 51
- References
- 34
- Citations by year
- 2025: 1 · 2023: 1 · 2022: 2 · 2021: 1 · 2020: 3 · 2019: 4 · 2018: 7 · 2017: 3 · 2016: 8 · 2015: 5 · 2014: 6 · 2013: 4 · 2012: 6
- FWCI
- 3.59
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Journal of Perinatal Medicine (publishedVersion)
- PubMed (publishedVersion)
- Research at the University of Copenhagen (University of Copenhagen) (publishedVersion)
- Topics
- Health Sciences › Medicine › Pathology and Forensic Medicine › Vitamin D Research Studies
- Health Sciences › Nursing › Nutrition and Dietetics › Vitamin K Research Studies
- Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Nutrition and Health Studies
- Keywords
- vitamin D status, 25-hydroxyvitamin D, pregnancy, postpartum period, lactation, vitamin D deficiency, vitamin D insufficiency, vitamin D intake, vitamin D supplementation, Danish women
- MeSH terms
- Adult, Denmark, Female, Humans, Lactation, Longitudinal Studies, Pregnancy, Vitamin D, Postpartum Period
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