Vitamin D (disambiguation)

Vitamin D usually refers to Vitamin D, the group of fat-soluble prohormones.

It may also refer to:

• Ergocalciferol, also known as vitamin D₂
• Cholecalciferol, also known as vitamin D₃
• 22-Dihydroergocalciferol, also known as vitamin D₄
• Vitamin D₅
• Calcifediol, also known as calcidiol: 25-hydroxycholecalciferol, or 25-hydroxyvitamin D (abbreviated 25(OH)D). Blood concentration of calcifediol is considered the best indicator of vitamin D status.
• vitamin D-related concepts, including:
  • Vitamin D and respiratory tract infections
  • Vitamin D and neurology
  • Hypervitaminosis D, toxicity caused by the ingestion of large doses of vitamin D
  • Hypovitaminosis D, a deficiency of vitamin D
  • Vitamin D-binding protein, encoded by the GC gene
  • calcitriol receptor, also known as VDR, a receptor for vitamin D
  • Vitamin D-dependent calcium-binding protein
  • X-linked hypophosphatemia, also known as vitamin D-resistant rickets, a form of rickets for which ingestion of vitamin D is relatively ineffective
• "Vitamin D" (Glee), an episode of the American musical comedy-drama television series Glee
• Dextromethorphan, or DXM, a street name for over-the-counter cough suppressants containing DXM.