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RCT: Vitamin D supplementation helps a few cardiovascular markers but not all

Posted on: November 29, 2013   by  Jeff Nicklas


A new randomized controlled trial finds that vitamin D supplementation only minimally improves vascular health among women of South Asian origin.

Those with darker skin who migrate to northern latitudes have a much more difficult time producing vitamin D. This is because, with their darker skin, they need more sun exposure to produce the same amount of vitamin D that people with lighter skin produce.

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2 Responses to RCT: Vitamin D supplementation helps a few cardiovascular markers but not all

  1. Ian

    Is the time frame of 8 weeks sufficient to measure such changes in cardiovascular health markers? I doubt it. I find it hard to believe that such a study would even be designed with such a short duration. And like you say, the blood level was only increased to around 20ng/ml. I suppose because it was a British study they thought that was adequate. Such confusion!

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