Calcium supplements improve bone health in postmenopausal women, but vitamin D supplements provide no benefit in women with normal vitamin D levels, a new study finds.
"These findings suggest that vitamin D supplements over the recommended dietary allowance do not protect bone health, whereas calcium supplements do have an effect," study lead author Dr. John Aloia, of Winthrop University Hospital in Mineola, N.Y., said in a news release from the Endocrine Society.
For the study, published Sept. 24 in the Journal of Clinical Endocrinology & Metabolism, the researchers examined bone turnover in 159 postmenopausal women. Bone turnover is the body's natural process for breaking down old bone. Young people produce enough new bone to replace what is lost, but bone mass in women begins to decline after age 30, and this loss speeds up after menopause. http://www.nlm.nih.gov/medlineplus/news/fullstory_140953.html
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