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Influencia de la exposición solar y la dieta en el estado nutricional de vitamina D en adolescentes españolas: estudio de los cinco países (Proyecto OPTIFORD).
- Source :
-
Nutrición Hospitalaria . sep/oct2010, Vol. 25 Issue 5, p755-762. 8p. 2 Charts, 3 Graphs. - Publication Year :
- 2010
-
Abstract
- Introduction: Vitamin D defficiency is a big public health concern, especially among women. For this reason, "The Five Countries Study" was set up whithin the OPTIFORD project. This study aims at knowing the vitamin D status in adolescent and older women in five European countries according to their different dietary and behavioral habits. Objectives: To analyze the relative contribution of sun exposure and the diet to the vitamin D status among 47 Spanish adolescents participating in " The Five Countries Study". Methods: Validated and standardized questionnaires (health, lifestyle, sun exposure, and frequency of food consumption), biochemical analysis (25-hydroxyvitamin D (S-25-OHD) and parathormone), and assessment of sun exposure (UV dosimeter). Results: Serum levels of S-25-OHD were higher durign the summertime than in winter (61.55 ± 12.85 nmol/l and 45.81 ± 9.29 nmol/l, respectively). Fourtyfive percent of the sample had a worsening of their vitamin status in the winter, as compared with the summer (p < 0.0001). During the summer, vitamin D insufficiency (S-25-OHD ≤ 50 nmol/l) affected 17% of the population, going up to 63% in the winter. Sixtysix percent of the sample did not reach the IR of vitamin D (5 g/day), being the fish the main dietary source of vitamin D. Conclusions: Only 34% of the participants had an adequate vitamin D status. Both adequate sun exposure and vitamin D dietary intake are recommended in order to correct defficient and insufficient situations. [ABSTRACT FROM AUTHOR]
Details
- Language :
- Spanish
- ISSN :
- 02121611
- Volume :
- 25
- Issue :
- 5
- Database :
- Academic Search Index
- Journal :
- Nutrición Hospitalaria
- Publication Type :
- Academic Journal
- Accession number :
- 54479220
- Full Text :
- https://doi.org/10.3305/nh.2010.25.5.4636