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Women Need More Calcium, Say Experts

Even Women With Osteoporosis Fail to Get the Bone-Building Benefits of Calcium
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By Linda Little
WebMD Health News

Sept. 26, 2005 (Nashville) -- Despite a major push by health authorities, most American women still aren't getting enough bone-building calcium even when they are being treated for osteoporosis.

"Calcium is important," says Robert P. Heaney, MD, of the Osteoporosis Research Center at Creighton University Medical Center in Omaha, Neb. "You want to tell American women to go to the chalkboard and write 1,000 times, 'I will take my calcium.'"

Heaney reported his findings at the American Society of Bone and Mineral Research 27 Annual meeting here.

Falling Short

Osteoporosis affects 9 million women, primarily postmenopausal women, making the bones weak and more likely to fracture. An additional 34 million women are estimated to have bone loss that puts them at risk for osteoporosis. Adequate daily calcium is essential in maintaining bone strength.

Creighton researchers looked at more than 11,000 women and evaluated how much calcium they got.

The results revealed that 85% of postmenopausal women only got on average 727 milligrams of calcium per day, a full 500 milligrams below the recommended intake of 1,200 milligrams a day for women aged 50 years and older.

"The study showed that daily calcium intake has not improved since the landmark Study of Osteoporotic Fractures nearly 20 years ago," says Heaney. "We wanted to see if health care was improving in this area. The answer is we are failing."

Osteoporosis Drugs Aren't Enough

To make matters worse, the team also found that even many American women prescribed medication for osteoporosis still weren't getting enough calcium and vitamin D. Calcium helps build stronger bones, and vitamin D helps the body better use calcium.

Of the more than 1,100 women taking medications for osteoporosis, only about one-third took the calcium supplementation necessary to achieve the full benefit of the medicine, the researchers reported.

One hundred percent of the women taking bisphosphonate need to be taking adequate levels of calcium, Heaney tells WebMD. "All the new osteoporosis drugs build bone - some more than others - but none without adequate calcium."

Humans Are Bad

When women are asked if taking calcium is important, they will answer that it's important, he says. "But they aren't internalizing the information and taking action."

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