Effect of vitamin D supplementation on endothelial function – An updated systematic review with meta-analysis and meta-regression
Nutrition, Metabolism and Cardiovascular Diseases, Vol 29, Issue 12, Dec 2019, Pages 1261-1272, https://doi.org/10.1016/j.numecd.2019.08.005
Cardiovascular category starts with the following
Cardiovascular category is associated with other categories: Diabetes 31, Omega-3 31 , Vitamin K 25 , Intervention 22 . Mortality 20 , Skin - Dark 18 , Magnesium 17 , Calcium 14 , Hypertension 14 , Trauma and surgery 13 , Stroke 13 , Kidney 12 , Metabolic Syndrome 11 , Seniors 10 , Pregnancy 8 as of Aug 2022
- Overview Cardiovascular and vitamin D
- Cardiovascular Disease is treated by Vitamin D - many studies 39+ meta-analyses
- Coronary Artery Disease and Vitamin D - many studies 18+
- Cardiovascular problems reduced by Omega-3 - many studies 34+
- Arteries and Atherosclerosis and Vitamin D - many studies 71+
- Atrial Fibrillation decreased by Vitamin D or Magnesium - many studies 26+
- Statins and Vitamin D - many studies 25+
- Arterial Stiffness and Vitamins – only Vitamin D was found to help – meta-analysis Feb 2022
- Those raising Vitamin D above 30 ng were 1.4 X less likely to die of Heart Attack (VA 19 years) – Oct 2021
- Giving free vitamin D to every Iranian would pay for itself by just reducing CVD – Oct 2021
- Sudden Cardiac Arrest – 2.8 X higher risk if low vitamin D – 2019
- Peripheral arterial disease risk is 1.5X higher if low vitamin D – meta-analysis March 2018
- Heart attack ICU costs cut in half by Vitamin D – Oct 2018
- Cardiovascular disease 2.3 X more-likely if poor Vitamin D Receptor – Aug 2022
Cholesterol, Statins
- Cholesterol is needed to produce both Vitamin D and Cortisol
- Overview Cholesterol and vitamin D
- Statins and Vitamin D - many studies statins often reduce levels of vitamin D
- Statin side-effects are reduced by Vitamin D – US patent Application – April 2019
Download the PDF from Sci-Hub via VitaminDWiki
Highlighted the few studies which used enough vitamin D to make a difference
Note: Unfortunately most meta-analyses ignore dose sizes
Note: The founder of VitaminDWiki owns a pulse wave velocity meter which uses his iPad for analysis and display
His arteries have Pulse Wave Velocities of a person 20 years younger.
Background and aims
Atherogenesis and endothelial dysfunction contribute to cardiovascular risk and vitamin D has been implemented in endothelial repair. This systematic review, meta-analysis and meta-regression aims to establish the effect of vitamin D supplementation on endothelial function.
Methods and Results
To conduct the systematic review we searched the Cochrane Library of Controlled Trials, PubMed, ProQuest and EMBASE for randomized controlled trials that investigated the effects of vitamin D supplementation on flow-mediated dilation (FMD%), pulse wave velocity (PWV), and central augmentation index (AIx). Meta-analysis was based on a random effects model and inverse-variance methods to calculate either mean difference (MD) or standardized mean difference (SMD) as effects sizes. This was followed by meta-regression investigating the effect of baseline vitamin D concentrations, vitamin D dosing and study duration. Risk of bias was assessed using the JADAD scale and funnel plots.
We identified 1056 studies of which 26 studies met inclusion criteria for quantitative analysis. Forty-two percent of the 2808 participants had either deficient or insufficient levels of vitamin D. FMD% (MD 1.17% (95% CI −0.20, 2.54), p = 0.095), PWV (SMD −0.09 m/s (95% CI −0.24, 0.07), p = 0.275) and AIx (SMD 0.05% (95% CI −0.1, 0.19), p = 0.52) showed no improvement with vitamin D supplementation. Sub-analysis and meta-regression revealed a tendency for AIx and FMD% to increase as weekly vitamin doses increased; no other significant relationships were identified.
Conclusions
Vitamin D supplementation showed no improvement in endothelial function. More evidence is required before recommendations for management of endothelial dysfunction can be made.
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