Vitamin deficiency in US military – Vitamin D is the most prevalent and is growing rapidly – June 2021 | VitaminDWiki
Indoor athletes have 4.5 ng less Vitamin D (Asia in this case) – meta-analysis April 2023 | VitaminDWiki
Vitamin D might a risk factor of insulin resistance, diabetes, obesity, etc. (50 ng) – Oct 2021 | VitaminDWiki
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