Strong evidencevitamin
Vitamin D for Slow Recovery
Vitamin D modulates both innate and adaptive immune responses required for recovery. It supports macrophage antimicrobial function, reduces excessive inflammation, and promotes tissue repair through growth factor regulation.
How strong is the research?
Strong evidence
Based on a randomised controlled trial (RCT) — the gold standard for establishing cause and effect.
How much to take
2000–4000 IU
Vitamin D deficiency impairs recovery. Test levels and supplement accordingly.
When to take it
Best taken: morning