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Graph showing the percentage of patients with vitamin D deficiency... | Download Scientific Diagram
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My vitamin D levels are at 15.6 ng/ml therefore I'm deficient, how much should I take and how often in your experience? - Quora
Vitamin D: 15 ng/mL
![Prevalence of vitamin D deficiency [25(OH)- D < 15 ng/ml],... | Download Scientific Diagram](https://www.researchgate.net/publication/253414647/figure/fig3/AS:341513876852739@1458434661152/Prevalence-of-vitamin-D-deficiency-25OH-D-15-ng-ml-insufficiency-25OHD-15-32.png "Prevalence of vitamin D deficiency [25(OH)- D < 15 ng/ml],... | Download Scientific Diagram")