Magenta tongue is found in the deficiency of the vitamin_____________?
Correct answer: C. Riboflavin
- A. nicotinic acid
- B. thiamine
- C. Riboflavin
- D. pyridoxine
Explanation
A magenta or purplish-red tongue is a classic oral sign of riboflavin deficiency, often accompanied by cheilosis and angular fissures. Thiamine deficiency more typically causes neurologic and cardiovascular manifestations.
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