What vitamins are you lacking with white tongue?
                                
                                
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                                    4 min read                                
                            
                                According to health experts, a persistently white tongue can sometimes indicate nutritional deficiencies, with low levels of vitamin B12, iron, and B-complex vitamins being common culprits. A white coating often results from enlarged papillae trapping bacteria, food particles, and dead cells, and nutrient imbalances can disrupt the normal regeneration process.