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Table
V. Oral signs and symptoms of nutritional deficiencies*
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| Symptom | Possible Deficiency |
| Glossitis | niacin, folic acid, vitamin B6, vitamin B12 |
| Glossodynia | B vitamins (riboflavin, niacin, folic acid,vitamin B6, and vitamin B12), zinc, iron |
| Stomatitis | niacin, folic acid, vitamin B12 |
| Xerostomia | vitamin A, vitamin B12 |
| Bleeding gingiva | vitamin C, vitamin K |
| Angular cheilosis | iron, B vitamins |
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* Other causes of these signs and symptoms may include
medication, radiation therapy for oral cancer, and other disease states.
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