What Vitamin Deficiency Is Linked to Mouth Ulcers?
                                
                                
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                                    4 min read                                
                            
                                According to research, recurrent aphthous stomatitis, or mouth ulcers, have been associated with a number of factors, including nutritional deficits. A common culprit for these painful sores is a specific vitamin deficiency, which can disrupt the body's normal processes and affect the health of your oral tissues.