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Prevalence of vitamin D insufficiency in Brazilian adolescents.
Ann Nutr Metab 2009; 54(1):15-21AN

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) microg/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.

Authors+Show Affiliations

Nutrition Department, School of Public Health, University of São Paulo, São Paulo, Brazil.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

19194104

Citation

Peters, Barbara Santarosa Emo, et al. "Prevalence of Vitamin D Insufficiency in Brazilian Adolescents." Annals of Nutrition & Metabolism, vol. 54, no. 1, 2009, pp. 15-21.
Peters BS, dos Santos LC, Fisberg M, et al. Prevalence of vitamin D insufficiency in Brazilian adolescents. Ann Nutr Metab. 2009;54(1):15-21.
Peters, B. S., dos Santos, L. C., Fisberg, M., Wood, R. J., & Martini, L. A. (2009). Prevalence of vitamin D insufficiency in Brazilian adolescents. Annals of Nutrition & Metabolism, 54(1), pp. 15-21. doi:10.1159/000199454.
Peters BS, et al. Prevalence of Vitamin D Insufficiency in Brazilian Adolescents. Ann Nutr Metab. 2009;54(1):15-21. PubMed PMID: 19194104.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Prevalence of vitamin D insufficiency in Brazilian adolescents. AU - Peters,Barbara Santarosa Emo, AU - dos Santos,Luana Caroline, AU - Fisberg,Mauro, AU - Wood,Richard James, AU - Martini,Lígia Araújo, Y1 - 2009/02/05/ PY - 2008/06/23/received PY - 2008/12/03/accepted PY - 2009/2/6/entrez PY - 2009/2/6/pubmed PY - 2009/5/27/medline SP - 15 EP - 21 JF - Annals of nutrition & metabolism JO - Ann. Nutr. Metab. VL - 54 IS - 1 N2 - 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) microg/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. SN - 1421-9697 UR - https://www.unboundmedicine.com/medline/citation/19194104/Prevalence_of_vitamin_D_insufficiency_in_Brazilian_adolescents_ L2 - https://www.karger.com?DOI=10.1159/000199454 DB - PRIME DP - Unbound Medicine ER -