Assertion: calcium's number | /r/CapableOf | take a placebo pill
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text: It was substantiated by a 2006 report from the Women's Health Initiative, which showed that 18,000 postmenopausal women who took a supplement containing 1,000 mg of calcium and 400 international units (IU) of vitamin D were no less likely to break their hips than an equal number who took a placebo pill, although the density of their hip bones increased slightly.