Biochemistry A patient is found to have sun-sensitive dermatitis, diarrhea, and dementia he must be suffering from the deficiency of which of the following. A Niacin B Riboflavin C Folic acid D Iron 💡 Explanation A patient is found to have sun-sensitive dermatitis, diarrhea, and dementia he must be suffering from the deficiency of which of the following. ✓ Correct Answer: A. Niacin