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Cola drinking may increase osteoporosis risk.

Some studies over the years have linked carbonated beverages with bone loss, but now researchers from Tufts University say cola, but not other sodas, may be associated with lower bone mineral density (BMD) in older women. The researchers analyzed dietary questionnaires and BMD measurements for 1,413 women and 1,125 men (average age 59) taking part in the Framingham Osteoporosis Study. Women reported drinking an average of five carbonated beverages a week (four of which were cola); men drank an average of six sodas a week (five of them cola). When the researchers compared cola consumption and BMD scans, they found cola was associated with lower bone mass at three sites in the hip among women--and the higher the consumption, the lower the BMD, regardless of age, calcium and vitamin D intake, smoking, or alcohol use. Cola consumption was not linked to lower BMD in the spine; there was no association with bone loss among men. Similar results were found for diet cola and decaffeinated cola (although that link was weaker), according to the study in the October 2006 American Journal of Clinical Nutrition. Colas (but not most other sodas) contain phosphoric acid, which may reduce calcium in the blood, causing bone loss in some people whose diets are low in calcium, the researchers note.

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Publication:Women's Health Advisor
Article Type:Brief article
Geographic Code:1USA
Date:Dec 1, 2006
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