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Vitamin D is recognized for its importance in helping the body absorb calcium and for the support it provides for healthy bones. But the possible consequences of low levels of vitamin D in other parts of the body are now being discovered. A study published in the January, 2003 issue of the Journal of the American College of Cardiology cites the apparent importance of vitamin D for supporting a healthy cardiovascular system. All 54 cardiac care patients involved in the study exhibited low levels of vitamin D.
Journal of the American College of Cardiology 41(1):105-112, 2003