Social & Preventive Medicine Besides 3 D’s (Diarrhoea, Dermatitis & Dementi(a) of Niacin deficiency, 4th D indicates A Death B Destruction C Debilitating D Disability 💡 Explanation Besides 3 D’s (Diarrhoea, Dermatitis & Dementi(a) of Niacin deficiency, 4th D indicates ✓ Correct Answer: A. Death