What Causes Niacin Deficiency? Understanding the Root Causes
                                
                                
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                                    3 min read                                
                            
                                While niacin deficiencies are uncommon in industrialized nations due to fortified foods, specific populations remain at risk of this condition. A deficiency can lead to pellagra, a systemic disease characterized by the "4 Ds": dermatitis, diarrhea, dementia, and if left untreated, death.