“Researchers who tested vitamin D pills sold in stores found they contained from 9% to 140% of the doses listed on labels, according to a research letter published Monday in JAMA Internal Medicine.”

This may not pose a serious immediate threat, but the mislabeling interferes with the treatment of Vitamin D deficiencies, for one thing. Then there’s the waste of money involved.

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Vitamin D doses often don’t match labels, study says