Research
Micronutrients & recovery
Vitamin D3 supplementation (2000 IU/day) does not reduce all-cause mortality in adults aged 50+ (men) and 55+ (women).
Taking 2000 IU of vitamin D3 daily will not help you live longer, based on this study. While it may support bone health, it does not appear to extend lifespan in older adults who are generally healthy.
StrongRefutesHIGH confidence
In the analysis of death from any cause (978 deaths), the hazard ratio was 0.99 (95% CI, 0.87 to 1.12).
Why this rating
Large-scale RCT with high statistical power.
Source
Vitamin D Supplements and Prevention of Cancer and Cardiovascular Disease
JoAnn E. Manson et al. · New England Journal of Medicine · 2018
rct · n=25871Cited 1,591×
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