Blood pressure levels and hypertension prevalence in a high selenium environment: results from a cross-sectional study

Background and aims Recent human and laboratory studies have suggested the possibility that selenium overexposure may increase blood pressure. We sought to ascertain whether adults living in a seleniferous area exhibit an association between selenium exposure and both blood pressure levels as well as prevalence of hypertension. Methods and results We measured selenium levels in blood (serum), hair and nail samples obtained from 680 adult...