Despite efforts to increase knowledge and emphasis on osteoporosis prevention and treatment, research indicates that many women treated for osteoporosis have low levels of vitamin D, a nutrient necessary for adequate bone mineralization.
A recent study involved 1,536 postmenopausal women from 61 study sites who had been taking medications for the treatment of osteoporosis for a minimum of three months. Participants were allowed to have used vitamin D supplements as long as the dosage had remained consistent.
Overall, 52 percent of the women had vitamin D levels considered inadequate. Sixty-three percent of women who reported a supplemental intake of 400 IU’s or less had inadequate vitamin D levels compared to 45 percent of those whose intake was 400 IU’s or greater. Lower levels were also associated with the lack of physician counseling regarding the importance of vitamin D in bone health.
The results of this study emphasize the need for greater education of the public and physicians regarding the significance of vitamin D status in the care of postmenopausal women with osteoporosis.
J Clin Endocrinol Metab 2005 Jun;90(6):3215-24
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The purpose of this study is to examine the effects of several doses of vitamin D on hormones related to bone, calcium absorption, bone density and muscle strength.
http://clinicaltrials.gov/show/NCT00472823
