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J Steroid Biochem Mol Biol. 2017 Oct;173:265-272. doi: 10.1016/j.jsbmb.2017.02.010. Epub 2017 Feb 16.

Vitamin D in adolescents: Are current recommendations enough?

Author information

1
Department of Nutritional Sciences, Faculty of Health and Medical Sciences, University of Surrey, Guildford, Surrey, GU2 7XH, UK. Electronic address: t.j.smith@surrey.ac.uk.
2
Department of Nutritional Sciences, Faculty of Health and Medical Sciences, University of Surrey, Guildford, Surrey, GU2 7XH, UK.

Abstract

Vitamin D is essential for bone development during adolescence and low vitamin D status during this critical period of growth may impact bone mineralization, potentially reducing peak bone mass and consequently increasing the risk of osteoporosis in adulthood. Therefore, the high prevalence of vitamin D inadequacy and deficiency in adolescent populations is of great concern. However, there is currently a lack of consensus on the 25-hydroxyvitamin D [25(OH)D] concentration, the widely accepted biomarker of vitamin D status, that defines adequacy, and the vitamin D intake requirements to maintain various 25(OH)D thresholds are not well established. While the current intake recommendations of 10-15μg/day may be sufficient to prevent vitamin D deficiency (25(OH)D<25-30nmol/l), greater intakes may be needed to achieve the higher threshold levels proposed to represent adequacy (25(OH)D>50nmol/l). This review will address these concerns and consider if the current dietary recommendations for vitamin D in adolescents are sufficient.

KEYWORDS:

Adolescents; Recommendations; Requirements; Vitamin D

PMID:
28216151
DOI:
10.1016/j.jsbmb.2017.02.010
[Indexed for MEDLINE]

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