Research

Hormonal

Vitamin D3 supplementation does not significantly improve arterial stiffness, as measured by pulse wave velocity (PWV) or augmentation index (AI).

Do not expect vitamin D3 supplementation to directly improve arterial stiffness (PWV or AI). While it may help lower blood pressure and cholesterol, it does not appear to change the physical stiffness of your arteries. Manage arterial health through exercise, blood pressure control, and other lifestyle factors.

GoodRefutesHIGH confidence
There was no significant effect of vitamin D supplementation on PWV (SMD = −0.20 ± 0.13 m/s, 95% CI, −0.46 to 0.06, p = 0.14) and AI (SMD = −0.09 ± 0.14%, 95% CI, −0.37 to 0.19, p = 0.52) for vitamin D supplemented groups.
Naghmeh Mirhosseini et al. · Frontiers in Cardiovascular Medicine · 2018

Why this rating

Based on the same high-quality meta-analysis of 81 RCTs, providing robust evidence for the lack of effect on these specific metrics.

Source

Vitamin D Supplementation, Serum 25(OH)D Concentrations and Cardiovascular Disease Risk Factors: A Systematic Review and Meta-Analysis

Naghmeh Mirhosseini et al. · Frontiers in Cardiovascular Medicine · 2018

DOI 10.3389/fcvm.2018.00087

Meta-analysis · 81 studiesCited 173×
Read the paper
DOI resolved against Crossref · corpus check 2026-06-10

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