What Supplements Cause High Eosinophils? Risks and Contributing Factors
                                
                                
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                                    8 min read                                
                            
                                In 1989, a rare but severe outbreak of Eosinophilia-Myalgia Syndrome (EMS) was conclusively linked to a contaminated batch of the dietary supplement synthetic L-tryptophan, causing severe illness and even death. While this specific event highlights a critical risk, the question of what supplements cause high eosinophils remains a complex topic for consumers today.