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Bone mineral density (BMD) is a measurement of the concentration in bone of minerals (mostly calcium and phosphate) that are vital for strong bones. A high bone mineral density means above-average amounts of calcium and phosphates in the bones, while a below-normal bone mineral density can mean a loss of bone mass, possibly from osteopenia or osteoporosis.
Last Revised: August 30, 2012
Author: Healthwise Staff
Medical Review: Anne C. Poinier, MD - Internal Medicine & Carla J. Herman, MD, MPH - Geriatric Medicine
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