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Health & Medical

Taking calcium and vitamin D to protect your bones? A new study says it doesn’t help

A recent study suggested taking calcium and vitamin D ot help prevent bone fractures may not help.
A recent study suggested taking calcium and vitamin D ot help prevent bone fractures may not help.

If taking more vitamin and mineral supplements is part of your plan for a healthier new year, a new study might prompt you to reconsider.

Researchers who scoured the medical literature for evidence that calcium and vitamin D pills could help prevent bone fractures came up empty.

Their analysis focused on adults older than age 50 who lived on their own (that is, not in a nursing home or other type of residential care facility). Fractures are a serious health concern for this population – previous studies have found that about 40 percent of women in this age group will wind up with at least one “major osteoporotic fracture” at some point in their lives, and that among adults who break a hip, 20 percent died within a year of their injury.

The researchers, led by Dr. Jia-Guo Zhao of Tianjin Hospital in northeastern China, combed through clinical trials, systematic reviews and other reports published in the last decade, since late 2006. They identified 51,145 people who were included in studies assessing the role of calcium and/or vitamin D in preventing bone fractures.

Their findings appeared in Tuesday’s edition of the Journal of the American Medical Association.

Among the 14 trials that pitted calcium supplements against either a placebo or no treatment, there was no statistically significant relationship between use of the mineral (in pill form) and the risk of suffering a hip fracture. Nor was there any clear link between calcium supplements and fractures involving the spine or other bones.

Even when the researchers accounted for each study participant’s gender, past history of bone fractures, the amount of calcium they consumed in their diets and the dose of the calcium pills they took (if they did), there was still no sign that supplements were helpful.

An additional 17 trials examined the role of vitamin D, which helps the body absorb calcium. Once again, they found no statistically significant link between supplement use and hip fracture risk. Ditto for fractures in the spine and elsewhere.

It’s still possible that calcium and vitamin D supplements are useful for people who live in nursing homes or other residential facilities, the study authors wrote. Such people are more likely to have osteoporosis.

But for older adults who live on their own, they wrote, the results are clear: “These findings do not support the routine use of these supplements.”

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©2017 Los Angeles Times

Visit the Los Angeles Times at www.latimes.com

Distributed by Tribune Content Agency, LLC.

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