Vitamin D supplementation in non-deficient people (its scam)

[nvr3noug6]

Vitamin D supplementation does not work in non-deficient people.
Effect of vitamin D supplementation on non-skeletal disorders: a systematic review of meta-analyses and randomised trials
Non-skeletal health effects of vitamin D supplementation: A systematic review on findings from meta-analyses summarizing trial data
Vitamin D supplementation has no effect on cognitive performance after four months in mid-aged and older subjects

Vitamin D3 supplementation has no effect on conventional cardiovascular risk factors: a parallel-group, double-blind, placebo-controlled RCT

Association between vitamin D supplementation and mortality: systematic review and meta-analysis