Rickets Links Vitamin D and Calcium Deficiencies

Steps:

• Identify nutritional deficiency diseases among options.
• Recall rickets involves impaired bone mineralization from vitamin D deficiency affecting calcium/phosphate absorption.
• Check anemia (often single nutrient like iron or B12), diabetes (metabolic, not dietary deficiency), and scurvy (vitamin C only).
• Confirm rickets requires both vitamin D and mineral ions (calcium/phosphate) for prevention.

Why C is correct:

• Rickets is defined as a disorder of bone softening in children due to vitamin D deficiency, which impairs intestinal absorption of calcium ions, a key mineral.

Why the others are wrong:

• A. Anemia typically results from single deficiencies like iron (mineral) or B12/folate (vitamins), not both required.
• B. Diabetes arises from insulin issues, not dietary mineral or vitamin deficiencies.
• D. Scurvy stems solely from vitamin C deficiency, with no mineral ion involvement.

Final answer: C