Understanding Which Vitamins Cause Flushing: Focus on Niacin
                                
                                
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                                    3 min read                                
                            
                                An estimated 50-90% of people who take immediate-release, high-dose niacin supplements experience a temporary, but intense, skin reaction known as a 'niacin flush'. This article explains **what vitamins cause flushing**, delving into the mechanism behind this reaction and offering practical strategies to manage it safely.