Q. Deficiency of ____ causes rickets disease:
Answer: Vitamin D
Notes: Rickets is the softening and weakening of bones in children, usually because of an extreme and prolonged vitamin D deficiency. Vitamin D is needed for the metabolism of calcium and phosphorus in the body, which, in turn affects how calcium is deposited in the bones; thus it is considered essential for proper bone development and growth.

This question is part of 40000+ General Studies MCQ Series Course on GKToday Android app. Question Number: 155 in 38. Human Diseases in above course in App.