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Injections are your best friend
The original approved version was discontinued in 2008 for commercial reasons, not safety concerns
A Phase II placebo-controlled hamstring-strain trial (NCT07437547) is now registered, with no published results
Administered intramuscularly (usually in the upper arm or buttocks), these injections deliver a high dose of either Vitamin D2 (ergocalciferol) or Vitamin D3 (cholecalciferol)
The frequency directly impacts the steady-state concentration of the compound in the system
Many notice improved focus and mental sharpness within the first week of treatment
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