Vitamin D may not improve knee osteoarthritis, according to a new study

Posted on: March 8, 2016   by  Vitamin D Council

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In a randomized controlled trial, researchers found that vitamin D supplementation did not reduce pain or slow the progression of knee osteoarthritis.

The media has been all over this recent negative study of vitamin D. However, what the media is neglecting to mention is that the vitamin D dosage used in the study was inadequate to produce meaningful results. The study used a monthly dose rather than a daily dose. In addition, the supplement only contained 50,000 IU of vitamin D3, which is the common amount doctors prescribe for their patients to take weekly.

We will blog on this study soon, but in the meantime, take a look at U.S. News & World Report’s article.

2 Responses to Vitamin D may not improve knee osteoarthritis, according to a new study

  1. rcbaker200@comcast.net

    I’m glad that the write up pointed out the low dose. Actually it’s only 1666 units a day (50,000 divided by 30). However some people get their main impressions from the headline, and the headline is definitely negative and misleading. A better headline would have been “SMALL DOSE OF VITAMIN D DOESN’T IMPROVE KNEE OSTEOARTHRITIS.”
    Another point, why do these misleading studies using small doses continue to be published? Could a segment of the medical industry be trying deliberately to mislead the public?
    Robert Baker MD

  2. Rita Celone Umile

    I personally know many researchers who follow the incorrect logic that if small doses of vitamin D don’t help a condition then large doses won’t either.

    Or (and this just pains me so) they actually think that 1,500 iu of D3 is a very large dose.

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