Table V. Oral signs and symptoms of nutritional deficiencies*
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
* Other causes of these signs and symptoms may include medication, radiation therapy for oral cancer, and other disease states.