Nutrition
Vitamin D3 Versus D2 Supplement Choice
Vitamin D3 versus D2 supplement choice—D3 cholecalciferol usually preferred for maintenance; follow clinician protocol for prescription D2 doses.
Vitamin D3 versus D2 supplement choice favors cholecalciferol D3 from lanolin or lichen for most maintenance plans—meta-analyses suggest slightly better 25-OH-D elevation than ergocalciferol D2 at equal IU, though both can work when prescribed. Vegans may choose lichen D3 over D2-only capsules.
Prescription megadose protocols sometimes use D2 weekly; follow your clinician. Take either form with dietary fat.
Food-first sun and fish still matter seasonally.
Common questions
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Is vitamin D2 bad?
D2 can raise levels when dosed appropriately—especially in medical protocols. For self-care maintenance, D3 is commonly preferred; vegans can use lichen D3.
Related terms
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