Prevalence of Vitamin D Insufficiency in Brazilian Adolescents

Prevalence of Vitamin D Insufficiency in Brazilian Adolescents

Author Emo Peters, Barbara Santarosa Google Scholar
Santos, Luana Caroline dos Google Scholar
Fisberg, Mauro Autor UNIFESP Google Scholar
Wood, Richard James Google Scholar
Martini, Ligia Araujo Google Scholar
Institution Universidade de São Paulo (USP)
Universidade Federal de Minas Gerais (UFMG)
Universidade Federal de São Paulo (UNIFESP)
Tufts Univ
Abstract Background/Aims: Cutaneous sun exposure and dietary vitamin D intake are important determinants of vitamin D status. the objective of the present study was to evaluate the vitamin D status of a group of healthy adolescent students living in Brazil. Methods: One hundred and thirty-six adolescents, 64 boys and 72 girls, aged 16-20 years old, living in a rural town in the state of São Paulo, Brazil, participated in this study. Results: the mean dietary vitamin D intake was 140 (120-156) IU/day [3.5 (3.0-3.9) mu g/day]. Only 14.9% of the students met the daily adequate intake recommendation of vitamin D. Only 27.9% practice physical activity outdoors and 17.6% of the adolescents apply sunscreen daily. the mean 25(OH)D concentration was 73.0 (22.0) nmol/l [29.2 (8.8) ng/ml]. Vitamin D insufficiency was observed in 60% of adolescents. Conclusions: the present study suggests that even in a sunny climate like Brazil the prevalence of vitamin D insufficiency in adolescents is high. Most likely this is due to low intakes of vitamin D in this group. Due to the limited extent of natural dietary sources of vitamin D, a policy of vitamin D food fortification should be considered in the future, and in the meantime greater use of vitamin D supplements in this population group should be encouraged to provide the increased amounts of this essential nutrient for optimal health. Copyright (C) 2009 S. Karger AG, Basel
Keywords Vitamin D status
Adolescents, Brazilian
Physical activity
Peak bone mass
Language English
Sponsor Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
Grant number FAPESP: 04/15312-9
FAPESP: 05/50089-1
Date 2009-01-01
Published in Annals of Nutrition and Metabolism. Basel: Karger, v. 54, n. 1, p. 15-21, 2009.
ISSN 0250-6807 (Sherpa/Romeo, impact factor)
Publisher Karger
Extent 15-21
Origin http://dx.doi.org/10.1159/000199454
Access rights Closed access
Type Article
Web of Science ID WOS:000264026500003
URI http://repositorio.unifesp.br/handle/11600/31219

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