Q.

Rickets is the deficiency disease of Vitamin D, in which the affected part is the -

A. skin
B. hair
C. bone
D. blood
Answer» C. bone
Explanation: Rickets is a softening of bones in children due to deficiency or impaired metabolism of vitamin D, phosphorus or calcium, potentially leading to fractures and deformity. Rickets is among the most frequent childhood diseases in many developing countries. The predominant cause is a vitamin D deficiency, but lack of adequate calcium in the diet may also lead to rickets (cases of severe diarrhea and vomiting may be the cause of the deficiency).
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