Which dietary deficiency of a vitamin can cause Rickets.: (A) Vitamin C, (B) Niacin, (C) Vitamin D, (D) Biotin
Answer is C. Vitamin D (as 1,25-dihydroxycholecalciferol) is involved in calcium metabolism.A dietary deficiency of vitamin D causes rickets. Scurvy is caused by lack of vitamin C. Pellagra is caused by a dietary deficiency of niacin, and beriberi is caused by a lack of thiamine (vitamin B.,).