(04-03-11) [Influence of sun exposure and diet to the nutritional status of vitamin D in adolescent Spanish women: the five countries study (OP

Influence of sun exposure and diet to the nutritional status of vitamin D in adolescent Spanish women: the five countries study (OPTIFORD Project).]

[Article in Spanish]
Rodr?guez Sangrador M, Beltr?n de Miguel B, Cuadrado Vives C, Moreiras Tuny O.
Departamento de Nutrici?n, Facultad de Farmacia, Universidad Complutense de Madrid, Madrid, Espa?a.
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

Source: Nutr Hosp. 2010 Oct;25(5):755-762

News

---

In evidenza

"L'informazione presente nel sito serve a migliorare, e non a sostituire, il rapporto medico-paziente."

Per coloro che hanno problemi di salute si consiglia di consultare sempre il proprio medico curante.