Wednesday, July 25, 2007

Low vitamin D levels linked to higher blood pressure

Low vitamin D levels linked to higher blood pressure NutraIngredients.com 7/25/07 "People with low blood levels of vitamin D may be at an increased risk of higher blood pressure - a problem that could be easily remedied with supplements..."The finding that ethnic differences in vitamin D status explained about half of the increased prevalence of hypertension in non-Hispanic blacks, compared with non-Hispanic whites, supports the previous suggestion that low vitamin D levels in non-Hispanic blacks may be a factor in their increased hypertension prevalence," ...people with the highest average 25(OH)D levels (at least 85.7 nmol/L) had systolic diastolic and blood pressure 3.0 and 1.6 mm Hg lower, respectively, than people with the lowest levels (40.4 nmol/L or less)...These results from a nationally representative US sample show that systolic BP and pulse pressure are inversely associated with serum 25OHD... The inverse association between serum 25OHD and systolic BP has clinical significance, because the latter variable is a better predictor of coronary heart disease risk than diastolic BP, particularly in older people," ...A recent review of the science reported that the tolerable upper intake level for oral vitamin D3 should be increased five-fold, from the current tolerable upper intake level (UL) in Europe and the US of 2000 International Units (IU), equivalent to 50 micrograms per day, to 10,000 IU (250 micrograms per day)."

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