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Article Publish Status: FREE
Abstract Title:

The Association between Serum 25(OH)D Status and Blood Pressure in Participants of a Community-Based Program Taking Vitamin D Supplements.

Abstract Source:

Nutrients. 2017 Nov 14 ;9(11). Epub 2017 Nov 14. PMID: 29135923

Abstract Author(s):

Naghmeh Mirhosseini, Hassanali Vatanparast, Samantha M Kimball

Article Affiliation:

Naghmeh Mirhosseini

Abstract:

BACKGROUND: Vitamin D deficiency is a risk factor for hypertension.

METHODS: We assessed 8155 participants in a community-based program to investigate the association between serum 25-hydroxyvitamin D (25(OH)D) status and blood pressure (BP) and the influence of vitamin D supplementation on hypertension. Participants were provided vitamin D supplements to reach a target serum 25(OH)D>100 nmol/L. A nested case-control study was conducted to examine the effect of achieving physiological vitamin D status in those who were hypertensive and not taking BP-lowering medication, and hypertensive participants that initiated BP-lowering medication after program entry.

RESULTS: At baseline, 592 participants (7.3%) were hypertensive; of those, 71% were no longer hypertensive at follow-up (12± 3 months later). There was a significant negative association between BP and serum 25(OH)D level (systolic BP: coefficient = -0.07, p<0.001; diastolic BP: coefficient = -0.1, p<0.001). Reduced mean systolic (-18 vs. -14 mmHg) and diastolic (-12 vs. -12 mmHg) BP, pulse pressure (-5 vs. -1 mmHg) and mean arterial pressure (-14 vs. -13 mmHg) were not significantly different between hypertensive participants who did and did not take BP-lowering medication.

CONCLUSION: Improved serum 25(OH)D concentrations in hypertensive individuals who were vitamin D insufficient were associated with improved control of systolic and diastolic BP.

Study Type : Human Study

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