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Vitamin D deficiency linked to high blood pressure

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Pre-menopausal women who have a vitamin D deficiency are significantly more likely to develop high blood pressure in mid-life, latest study results suggest.

Between 1992 and 2007, US researchers took annual blood pressure measurements from 559 women aged 24 to 44. Vitamin D levels were measured once in 1993 and then compared with systolic blood pressure measurements taken in 2007.

The researchers found that women who had a vitamin D deficiency in 1993 had three times the risk of developing systolic hypertension 15 years later compared to women who had normal levels of vitamin D.

The number of women diagnosed with or being treated for hypertension, or who had undiagnosed systolic hypertension, rose from six per cent at the start of the study to 25 per cent at the end, they said.

“This study differs from others because we are looking over the course of 15 years, a longer follow-up than many studies. Our results indicate that early vitamin D deficiency may increase the long term risk of high blood pressure in women at mid-life,” the researchers said last week at the American Heart Association’s annual high blood pressure research conference in Chicago, Illinois.

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Readers' comments (2)

  • I think this study will be important in linking it to kidney patients who are at time affected by both these issues.

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  • Edward Hutchinson

    In this research they regarded Vitamin D deficiency as less than 80 nanomoles per liter (nmol/L), while normal levels were considered more than 80 nmol/L.
    While this is typical for researcher's, people concerned about achieving optimum health should be aware that only when our circulating levels of 25(OH)D is above 40ng/ml or 100nmol/l can be be sure we are actually meeting our daily needs. Human bodies only build a significant store of D3 above 50ng/ml 125nmol/l and it's only above 135nmol/l 55ng/l that we find human breast milk flows replete with D3, lowest incidence of chronic illness and humans achieve peak athletic and muscular performance.
    You can make your choice as to what is best for your personal health or for your best financial interest, but I take 5000iu/daily, I keep my 25(OH)D above 60ng/ml ~ 150nmol/l and I get 20~30 mins midday sun exposure whenever UK weather permits.
    Be aware the average UK adult 25(OH)D is less than 50nmol/l through the year. It takes 4000iu/daily/D3 just to get the average UK adult above 80nmol/l.
    Be aware also there isn't a stand alone Vitamin D3 available on prescription.
    D2 is NOT converted to the active metabolite by most people particularly the elderly. It certainly isn't as effective as D3 cholecalciferol. The research from Holick suggesting at low dose it may be is fundamentally flawed.
    Heaney What's a vitamin D Deficiency You tube video supports what I am saying.

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