J Nutr Health.  2016 Feb;49(1):28-35. 10.4163/jnh.2016.49.1.28.

Relationship of vitamin D status and obesity index in Korean women

Affiliations
  • 1Division of Food and Nutrition, Chonnam National University, Gwangju 61186, Korea. yrhuh@jnu.ac.kr
  • 2Research Institute for Human Ecology, Chonnam National University, Gwangju 61186, Korea.

Abstract

PURPOSE
Vitamin D status is associated with several chronic diseases related to obesity. In this study, we evaluate the nutritional status of vitamin D and its relation to obesity indices in Korean women.
METHODS
A total of 156 healthy women participated. Vitamin D status (serum 25-OH-vitamin D3 level) and obesity indices (body mass index, body fat mass, waist-hip ratio, and body fat percentage etc.) and serum lipid profiles and serum adipokine (leptin and adiponectin) levels were analyzed.
RESULTS
The 25(OH)D3 level showed an extremely skewed distribution from 4.1 ng/ml to 24.4 ng/ml and mean 25(OH)D3 level was 9.0 +/- 4.0 ng/ml. With cut-off level for vitamin D deficiency (< 12.0 ng/ml), insufficiency (12-19.9 ng/ml) and sufficiency (> or = 20 ng/ml), 77.6%, 19.2%, and 3.2% of subjects showed vitamin D deficiency, insufficiency, and sufficiency status, respectively. The 25(OH)D3 level showed positive correlation with weight (r = 0.2461, p < 0.01), body mass index (r = 0.2913, p < 0.001), body fat contents (r = 0.1691, p < 0.05), fat free mass (r = 0.2330, p < 0.01), and waist hip ratio (r = 0.1749, p < 0.05) after adjusted by age. The 25(OH)D3 level showed no significant correlation with serum lipid profiles and adipokine levels.
CONCLUSION
Most subjects (76.6%) in this study, who had a vitamin D deficient status and serum 25(OH)D3 level, showed positive correlation with several obesity indices, however further research based on a large Korean population is needed to confirm the relationship.

Keyword

vitamin D; obesity; 25(OH)D3; body fat; deficiency
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