A patient presented with diarrhea, dermatitis, and dementia. Which of the following vitamin deficiencies would you suspect in this patient?

Options

1. Vitamin B3 deficiency
2. Vitamin B1 deficiency
3. Vitamin B6 deficiency
4. Vitamin B12 deficiency

Correct Answer

Vitamin B3 deficiency

Explanation

The classic triad of diarrhea, dermatitis, and dementia (3 Ds) is characteristic of Pellagra, which is caused by Niacin (Vitamin B3) deficiency. A fourth D - death - can occur if left untreated. This condition is also associated with a photosensitive dermatitis.

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