Pediatrics Most potent form of vitamin D is – A Ergocalciferol (Vit. D2) B 7 dehydro cholecalciferol C 25 hydroxy cholecalciferol D 1,25 dihydroxy cholecalciferol 💡 Explanation Most potent form of vitamin D is - ✓ Correct Answer: D. 1,25 dihydroxy cholecalciferol