What Deficiency Gives You a Sore Tongue?
                                
                                
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                                    5 min read                                
                            
                                According to a 2018 study, nutritional deficiencies, such as low levels of B vitamins and iron, can cause inflammation of the tongue, a condition known as glossitis. A sore tongue is a common symptom of these issues, often accompanied by changes in texture and color.