Scientists at Chung-Ang University publish research in life sciences.

In this recent article published in the Asia Pacific Journal of Clinical Nutrition, scientists in Seoul, South Korea conducted a study "To determine the vitamin D status of Korean postmenopausal women during the winter months according to the intake of vitamin D supplements. Cross sectional study of serum 25(OH)D levels according to the intake of vitamin D supplements in postmenopausal women."

"Between November 2006 and February 2007, 254 postmenopausal women who visited our menopausal clinic for hormone therapy or osteoporosis medication were recruited. Serum 25(OH)D levels were measured with a radioimmunoassay kit and the results were compared among groups that were classified according to the intake amount of vitamin D supplements. The mean scrum 25(OH)D level was 83.3 +/- 32.8 nmol/L and it increased as the intake amount of vitamin D supplements increased. The mean serum 25(OH)D level was not significantly different between groups I (no vitamin D supplements) and 2 (daily 100-300 IU supplements). However, the mean serum 25(OH)D level was significantly higher in group 3 (daily 400 IU supplements) than in group 1. While the mean value of group 4 (daily 600 IU) was not significantly different from that of group 3, it was significantly lower than that of group 5 (daily 800-900 IU). Vitamin D supplementation is highly effective in improving vitamin D status and the vitamin D status in this ...