A deficiency in D vitamin, even curbed, could represent a risk increased to endure cardiovascular unrests. It is what the results of a étude1 that Circulation has just published indicate, the newspaper of the American association for the illnesses of the heart.
Led by researchers of the Faculty of medicine of the Harvard university, the survey was about a cohort of 1 739 aged people, on average, of 59 years without antecedents of cardiovascular unrests. During the five years of follow-up, the researchers measured the rates of vitamin periodically circulating D in the organism of the topics. To the term of the survey, 120 topics had endured cardiovascular unrests: infarcts, cardiac failing or cerebral vascular accident.
The people of which the content in D vitamin was the weakest presented two times more of risk to undergo an infarcts, a cardiac failing or a cerebral vascular accident, compared to those whose content was the most elevated. Even after having pondered their results in order to take into account other factors of risk (diabetes, rate of cholesterol or arterial tension elevated, etc.), the increase of the risk associated to the deficiency in D vitamin stayed meaningful. This growth was especially important among the subjects that presented an arterial tension superior to the average.
The researchers conclude however that it would be necessary to lead clinical tests on a big scale in order to determine if a supplement of this vitamin would have a preventive effect on the cardiovascular unrests.
More and more scientific believe that it would be appropriate to review to the rise the nutritional contribution recommended in D vitamin, especially for the people who live under latitudes where the sun makes itself rarer in shiver.
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