Heavy Marijuana Use Reduces Bone Density, Increases Risk of Fractures

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A new study from the University of Edinburgh has provided early evidence that “Heavy cannabis use is associated with low bone mineral density, low BMI, high bone turnover, and an increased risk of fracture. Heavy cannabis use negatively impacts bone health both directly and indirectly through an effect on BMI.”

This is the first study to look at marijuana’s effects on bones, so it is too early to definitively define those effects.  But this early study showed that heavy marijuana use accounted for about 5-6% change in bone density, and that heavy users were more than twice as likely to experience fractures as non-users.

The full article is available on the website of the Journal of the American Medical Association.

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