High blood levels of vitamin d increase risk of stroke coronary study

A study identifying a link between high levels of vitamin D and cardiovascular deaths, suggests that the level of vitamin D in our blood should not be too high nor to low, but, to quote Goldilocks, "just right". Research from the University of Copenhagen found that high serum vitamin D - over 100 nanomol per litre - is connected to an increased risk of dying from a stroke or a coronary.

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