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Prevalence of Vitamin D Insufficiency in Brazilian Adolescents

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... Full description

Journal Title: Annals of Nutrition and Metabolism March 2009, Vol.54(1), pp.15-21
Main Author: Peters, Barbara Santarosa Emo
Other Authors: Dos Santos, Luana Caroline , Fisberg, Mauro , Wood, Richard James , Martini, Lígia Araújo
Format: Electronic Article Electronic Article
Language: English
Subjects:
ID: ISSN: 0250-6807 ; E-ISSN: 1421-9697 ; DOI: 10.1159/000199454
Link: https://www.karger.com/Article/Abstract/199454
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recordid: karger_sANM2009054001015
title: Prevalence of Vitamin D Insufficiency in Brazilian Adolescents
format: Article
creator:
  • Peters, Barbara Santarosa Emo
  • Dos Santos, Luana Caroline
  • Fisberg, Mauro
  • Wood, Richard James
  • Martini, Lígia Araújo
subjects:
  • Original Paper
  • Vitamin D Status
  • Adolescents, Brazilian
  • Physical Activity
  • Peak Bone Mass
  • Diet & Clinical Nutrition
ispartof: Annals of Nutrition and Metabolism, March 2009, Vol.54(1), pp.15-21
description: 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) μg/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.
language: eng
source:
identifier: ISSN: 0250-6807 ; E-ISSN: 1421-9697 ; DOI: 10.1159/000199454
fulltext: fulltext
issn:
  • 0250-6807
  • 02506807
  • 1421-9697
  • 14219697
url: Link


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descriptionBackground/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) μg/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.
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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) μg/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.

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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) μg/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.

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