Multiple choice Osteomalacia, a disease of the bones in adult is due to hypoparathyroidism due to dietary deficiency of calcium and vitamin D due to hyperthyroidism due to hyperparathyroidism Reveal answer Fill a bubble to check yourself B Correct answer Explanation Osteomalacia, a disease of the bones in adults, is due to dietary deficiency of calcium and vitamin D. Measures to prevent and treat osteomalacia usually revolve around intake of vitamin D and calcium supplements.