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Vitamin D-fortified milk achieves the targeted serum 25-hydroxyvitamin D concentration without affecting that of parathyroid hormone in New Zealand toddlers

Houghton, Lisa A., Gray, Andrew R., Szymlek-Gay, Ewa A., Heath, Anne-Louise M. and Ferguson, Elaine L. 2011, Vitamin D-fortified milk achieves the targeted serum 25-hydroxyvitamin D concentration without affecting that of parathyroid hormone in New Zealand toddlers, Journal of nutrition, vol. 141, no. 10, pp. 1840-1846.

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Title Vitamin D-fortified milk achieves the targeted serum 25-hydroxyvitamin D concentration without affecting that of parathyroid hormone in New Zealand toddlers
Author(s) Houghton, Lisa A.
Gray, Andrew R.
Szymlek-Gay, Ewa A.ORCID iD for Szymlek-Gay, Ewa A. orcid.org/0000-0002-6533-7945
Heath, Anne-Louise M.
Ferguson, Elaine L.
Journal name Journal of nutrition
Volume number 141
Issue number 10
Start page 1840
End page 1846
Total pages 7
Publisher American Society for Nutrition
Place of publication Bethesda, Md.
Publication date 2011-10-01
ISSN 0022-3166
1541-6100
Keyword(s) vitamin D
fortified milk
serum
parathyroid hormone (PTH)
randomized trial
dose-response relationship
Summary For young children, the level of vitamin D required to ensure that most achieve targeted serum 25-hydroxyvitamin D [25(OH)D] ≥50 nmol/L has not been studied. We aimed to investigate the effect of vitamin D-fortified milk on serum 25(OH)D and parathyroid hormone (PTH) concentrations and to examine the dose–response relationship between vitamin D intake from study milks and serum 25(OH)D concentrations in healthy toddlers aged 12–20 mo living in Dunedin, New Zealand (latitude 46°S). Data from a 20-wk, partially blinded, randomized trial that investigated the effect of providing red meat or fortified toddler milk on the iron, zinc, iodine, and vitamin D status in young New Zealand children (n = 181; mean age 17 mo) were used. Adherence to the intervention was assessed by 7-d weighed diaries at wk 2, 7, 11, 15, and 19. Serum 25(OH)D concentration was measured at baseline and wk 20. Mean vitamin D intake provided by fortified milk was 3.7 μg/d (range, 0–10.4 μg/d). After 20 wk, serum 25(OH)D concentrations but not PTH were significantly different in the milk groups. The prevalence of having a serum 25(OH)D <50 nmol/L remained relatively unchanged at 43% in the meat group, whereas it significantly decreased to between 11 and 15% in those consuming fortified study milk. In New Zealand, vitamin D intake in young children is minimal. Our findings indicate that habitual consumption of vitamin D-fortified milk providing a mean intake of nearly 4 μg/d was effective in achieving adequate year-round serum 25(OH)D for most children.
Language eng
Field of Research 119999 Medical and Health Sciences not elsewhere classified
Socio Economic Objective 970111 Expanding Knowledge in the Medical and Health Sciences
HERDC Research category C1.1 Refereed article in a scholarly journal
Copyright notice ©2011, American Society for Nutrition
Persistent URL http://hdl.handle.net/10536/DRO/DU:30045244

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