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Which vitamin deficiency classically causes cheilosis (cr... | QuestionStock

Representative image for question: Which vitamin deficiency classically causes cheilosis (cracked lips) and glossitis?

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Medicine

Which vitamin deficiency classically causes cheilosis (cracked lips) and glossitis?

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Which vitamin deficiency classically causes cheilosis (cracked lips) and glossitis?

Options:

Riboflavin (vitamin B2)
Vitamin A
Vitamin C
Niacin (vitamin B3)

Correct answer: Riboflavin (vitamin B2)

Explanation: Riboflavin (vitamin B2) deficiency causes cheilosis and glossitis due to impaired flavoprotein (FAD/FMN) function; riboflavin is an essential precursor for FAD and FMN cofactors in redox reactions.

Created 2026-03-10T17:31:55.120Z. Updated 2026-03-10T17:31:55.120Z.