Which vitamin is necessary for the activation of osteoclasts, which are responsible for bone resorption?

A Vitamin D ✓
B Vitamin K
C Vitamin E
D Vitamin A

Explanation

Vitamin D is necessary for the activation of osteoclasts, which are responsible for bone resorption, thereby regulating calcium levels in the blood.

Mnemonic

D = Demolish = Destroy old bone

Source

Journal of Bone and Mineral Research
Vitamins Bone Health Bone Resorption Hard MEDICAL Confidence: high