Question

Which one of the following diseases is caused by the deficiency of niacin:

• A. Anemia
• B. Night Blindness
• C. Pellagra
• D. Scurvy

Hint:

Remember the "3 Ds" of Pellagra (Dermatitis, Diarrhea, Dementia) to identify niacin deficiency diseases. Niacin is crucial for energy metabolism and skin health.

Answer 1

The Correct Option is C

Step 1: Understanding niacin and its role. Niacin, also known as Vitamin B3, is essential for the proper functioning of the body's metabolic processes. It plays a key role in energy production and the repair of DNA. 

Step 2: Niacin deficiency and Pellagra. Pellagra is caused by a deficiency of niacin or its precursor tryptophan. Symptoms of pellagra are commonly referred to as the "3 Ds": 
- Dermatitis (skin issues, especially in sun-exposed areas), 
- Diarrhea, 
- Dementia, and if untreated, it can lead to death.

 Step 3: Why other options are incorrect. - Anemia is caused by deficiencies in iron, Vitamin B12, or folate. - Night blindness is due to Vitamin A deficiency. - Scurvy results from a lack of Vitamin C.