Blood Vitamin C Levels Inversely Related To Blood Pressure
A study published in 2008 had found an inverse relationship between blood vitamin C levels and blood pressure, as well as change in blood pressure, in young adults who are healthy.
The study had looked at 242 women, aged 18 to 21 years and belonging to both white and black ethnicities, from the Richmond, California cohort of the National Heart, Lung and Blood Institute Growth and Health Study.
Ten years after the start of the study, plasma ascorbic acid levels were found to be inversely associated with both systolic and diastolic blood pressure. This was after factors such as body mass index, dietary intake of fat and sodium, education and race were taken into account.
In addition, blood levels of ascorbic acid were found to be inversely associated with the change in both systolic and diastolic blood pressure during the preceding year, i.e. from year 9 to year 10 of the study.
The link between vitamin C and blood pressure regulation is not entirely new. Previous research had shown that vitamin C improves nitric oxide activity, and nitric oxide is needed for blood vessel dilation, a potentially important function in reducing blood pressure.
Further research will probably reveal more on the subject.
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