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Vitamin D and cardiovascular diseases: Causality

Sunil J Wimalawansa1

  • 1Professor of Medicine, Endocrinology & Nutrition, Cardio Metabolic Institute, NJ, USA.

The Journal of Steroid Biochemistry and Molecular Biology
|December 29, 2016
PubMed

Insights

Vitamin D plays a key role in cardiovascular health. While observational studies suggest vitamin D deficiency is linked to hypertension and heart disease, more clinical trials are needed to confirm these benefits.

Area of Science:

  • Cardiovascular Medicine
  • Endocrinology
  • Nutritional Science

Background:

  • Vitamin D is crucial for cardiovascular health, regulating blood pressure and cell functions.
  • Observational studies link vitamin D deficiency to hypertension and cardiovascular mortality.
  • The precise role of vitamin D in cardiovascular disease prevention remains under investigation.

Purpose of the Study:

  • To review current knowledge on vitamin D's effects on the cardiovascular system.
  • To analyze the evidence linking vitamin D status to cardiovascular health outcomes.
  • To identify the need for further clinical trials to confirm vitamin D's protective role.

Main Methods:

  • Systematic review of peer-reviewed papers from multiple research databases.
  • Keywords focused on the relationship between vitamin D and cardiovascular disease.
  • Analysis of correlations, risks, benefits, and broader evidence.

Main Results:

  • Vitamin D metabolites (1,25(OH)2D) may reduce inflammation, improve endothelial function, and lower systolic hypertension.
  • Most observational studies suggest a protective cardiovascular effect of vitamin D.
  • Evidence is primarily from observational studies, lacking robust clinical trial data.

Conclusions:

  • The association between vitamin D deficiency and cardiovascular disease is controversial due to limited clinical trial evidence.
  • Well-designed, large-scale clinical trials are necessary to confirm if correcting vitamin D deficiency protects cardiovascular health.
  • Maintaining adequate vitamin D levels through supplementation or sunlight exposure may be important for preventing cardiovascular and chronic diseases.

Keywords:
25(OH)DCardiacCommunityHypertensionMorbidity and mortalityRenin and angiotensin

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