Why does glossitis occur in pellagra sufferers more readily than in individuals with sufficient niacin intake?

💡 Explanation

Pellagra includes glossitis because niacin (vitamin B3) is critical for the function of NADH and NADPH in cellular respiration. Therefore, a deficiency impairs energy production and tissue maintenance in the tongue, rather than other deficiencies like folate or thiamine directly impacting oral tissue integrity.

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