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Diabetics who were low on vitamin D were 2X more likely to become obese – Feb 2013

Hypovitaminosis D and incidence of obesity: a prospective study.

Eur J Clin Nutr. 2013 Feb 20. doi: 10.1038/ejcn.2013.48.
González-Molero I, Rojo-Martínez G, Morcillo S, Gutierrez C, Rubio E, Pérez-Valero V, Esteva I, Ruiz de Adana MS, Almaraz MC, Colomo N, Olveira G, Soriguer F.
1] Servicio de Endocrinología y Nutrición, Hospital Regional Universitario Carlos Haya de Málaga, Málaga, Spain 2 Ciber de Diabetes y Metabolismo (CIBERDEM), Barcelona, Spain.

The aim of this study was to assess the relationship between obesity and vitamin D status cross-sectionally, the relationship between obesity and the incidence of hypovitaminosis D prospectively and inversely the relationship between vitamin D status and incidence of obesity in a population-based cohort study in Spain. At baseline (1996-1998), 1226 subjects were evaluated and follow-up assessments were performed in 2002-2004 and 2005-2007, participants undergoing an interview and clinical examination with an oral glucose tolerance test. At the second visit, 25-hydroxyvitamin D and intact parathyroid hormone concentrations were also measured. Prevalence of obesity at the three visits was 28.1, 36.2 and 39.5%, respectively. The prevalence of vitamin D deficiency (25-hydroxyvitamin D 20 ng/ml (50 nmol/l)) was 34.7%. Neither obesity at baseline (OR=0.98, 95% CI: 0.69-1.40, P=0.93) nor the development of obesity between baseline and the second evaluation (OR=0.80, 95% CI: 0.48-1.33, P=0.39) were significantly associated with vitamin D status. In subjects who were non-obese (BMI <30 kg/m(2)) at the second evaluation, 25-hydroxyvitamin D values 17 ng/ml (42.5 nmol/l) were significantly associated with an increased risk of developing obesity in the next 4 years (OR=2.35, 95% CI: 1.03-5.4, P=0.040 after diverse adjustments).

We conclude that vitamin D deficiency is associated with an increased risk of developing obesity.

PMID: 23422920


See also VitaminDWiki

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