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Vitamin D and Blood Sugar in Women with Osteoporosis

Postmenopausal osteoporosis (PMO) is associated with other comorbidities such as impaired glucose homeostasis and cardiovascular disease. Vitamin D insufficiency is highly prevalent and may be a common link between these disorders. In this study, the aim was to assess the relationship between circulating levels of Vitamin D (25(OH)D) and parameters of glucose homeostasis in a cohort of women with PMO to establish a serum concentration threshold of 25(OH)D for improved glycemic parameters (1). This cross-sectional study included 40 women with PMO. The results showed that circulating levels of 25(OH)D were related to glucose parameters in women with PMO, resulting in an indicator of insulin sensitivity independent of age, body mass index, percent body fat, and undercarboxylated osteocalcin. The authors conclude that this study supports the hypothesis that circulating 25(OH)D levels are related to improved glucose homeostasis in women with PMO. However, this relationship was apparent only in the presence of high circulating levels of 25(OH)D.