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Vitamin D is widely considered the most important vitamin you can take for your overall health
Karim R, Stanczyk FZ, Brinton RD, Rettberg J, Hodis HN, Mack WJ
Some people feel improvements in energy and wellbeing within a few days, while skin-related benefits may take a few weeks of consistent treatment
Maintenance therapy requires lifelong injections every two to three months to prevent relapse of deficiency
Frequency: Once per day (subcutaneous, preferably before sleep) [3]
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