My vitamin D level is 25 nmol/L or 7.8 ng/mL. The doctor has told me it is “average” should I be concerned? - Quora
![Medicina | Free Full-Text | Bioavailability of Different Vitamin D Oral Supplements in Laboratory Animal Model Medicina | Free Full-Text | Bioavailability of Different Vitamin D Oral Supplements in Laboratory Animal Model](https://www.mdpi.com/medicina/medicina-55-00265/article_deploy/html/images/medicina-55-00265-g003.png)
Medicina | Free Full-Text | Bioavailability of Different Vitamin D Oral Supplements in Laboratory Animal Model
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Preventing vitamin D deficiency during the COVID-19 pandemic: UK definitions of vitamin D sufficiency and recommended supplement dose are set too low | RCP Journals
![Frontiers | Global and regional prevalence of vitamin D deficiency in population-based studies from 2000 to 2022: A pooled analysis of 7.9 million participants Frontiers | Global and regional prevalence of vitamin D deficiency in population-based studies from 2000 to 2022: A pooled analysis of 7.9 million participants](https://www.frontiersin.org/files/Articles/1070808/fnut-10-1070808-HTML-r1/image_m/fnut-10-1070808-g001.jpg)
Frontiers | Global and regional prevalence of vitamin D deficiency in population-based studies from 2000 to 2022: A pooled analysis of 7.9 million participants
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Nutrients | Free Full-Text | Clinical Practice in the Prevention, Diagnosis and Treatment of Vitamin D Deficiency: A Central and Eastern European Expert Consensus Statement
![Longitudinal changes in vitamin D concentrations and the association with type 2 diabetes mellitus: the Tromsø Study | Acta Diabetologica Longitudinal changes in vitamin D concentrations and the association with type 2 diabetes mellitus: the Tromsø Study | Acta Diabetologica](https://media.springernature.com/m685/springer-static/image/art%3A10.1007%2Fs00592-022-02001-y/MediaObjects/592_2022_2001_Fig2_HTML.png)
Longitudinal changes in vitamin D concentrations and the association with type 2 diabetes mellitus: the Tromsø Study | Acta Diabetologica
![Table 1 from Moderate Amounts of Vitamin D3 in Supplements are Effective in Raising Serum 25-Hydroxyvitamin D from Low Baseline Levels in Adults: A Systematic Review | Semantic Scholar Table 1 from Moderate Amounts of Vitamin D3 in Supplements are Effective in Raising Serum 25-Hydroxyvitamin D from Low Baseline Levels in Adults: A Systematic Review | Semantic Scholar](https://d3i71xaburhd42.cloudfront.net/b56b8caf4f57999cda832be88ab85f9f8c5f93fe/5-Table1-1.png)
Table 1 from Moderate Amounts of Vitamin D3 in Supplements are Effective in Raising Serum 25-Hydroxyvitamin D from Low Baseline Levels in Adults: A Systematic Review | Semantic Scholar
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Oral vitamin D supplemental therapy to attain a desired serum 25-hydroxyvitamin D concentration in essential healthcare teams | Trials | Full Text
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Nutrients | Free Full-Text | Optimal Vitamin D Supplementation Doses that Minimize the Risk for Both Low and High Serum 25-Hydroxyvitamin D Concentrations in the General Population
![High Prevalence of Severe Vitamin D Deficiency in cART Naïve and Successfully Treated Swiss HIV Patients High Prevalence of Severe Vitamin D Deficiency in cART Naïve and Successfully Treated Swiss HIV Patients](https://www.natap.org/2010/images/022610/022610-4/image002.gif)
High Prevalence of Severe Vitamin D Deficiency in cART Naïve and Successfully Treated Swiss HIV Patients
![Prevalence of vitamin D deficiency (25OHD , 50 nmol/l) in different age... | Download Scientific Diagram Prevalence of vitamin D deficiency (25OHD , 50 nmol/l) in different age... | Download Scientific Diagram](https://www.researchgate.net/publication/263740732/figure/fig1/AS:296525071699972@1447708494514/Prevalence-of-vitamin-D-deficiency-25OHD-50-nmol-l-in-different-age-groups-P-0007.png)
Prevalence of vitamin D deficiency (25OHD , 50 nmol/l) in different age... | Download Scientific Diagram
![New Study Shows ~50% Lower COVID-19 Positivity Rate among those with Higher Vitamin D Levels - GrassrootsHealth New Study Shows ~50% Lower COVID-19 Positivity Rate among those with Higher Vitamin D Levels - GrassrootsHealth](https://www.grassrootshealth.net/wp-content/uploads/2020/09/Kaufman-COVID-Vit-D-Chart.png)
New Study Shows ~50% Lower COVID-19 Positivity Rate among those with Higher Vitamin D Levels - GrassrootsHealth
![Vitamin D oral intermittent treatment (DO IT) study, a randomized clinical trial with individual loading regimen | Scientific Reports Vitamin D oral intermittent treatment (DO IT) study, a randomized clinical trial with individual loading regimen | Scientific Reports](https://media.springernature.com/full/springer-static/image/art%3A10.1038%2Fs41598-021-97417-x/MediaObjects/41598_2021_97417_Fig1_HTML.png)