What Happens to Excess Niacin in the Body?
                                
                                
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                                    4 min read                                
                            
                                Niacin is a water-soluble B-vitamin, meaning the body doesn't store it and eliminates excess amounts through urine. While this prevents accumulation from dietary sources, high-dose supplements can overload the body's natural processing capabilities, leading to potential toxicity and unwanted side effects.