What Does Too Much Tryptophan Do? Understanding the Risks
                                
                                
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                                    4 min read                                
                            
                                In 1989, L-tryptophan supplements were linked to thousands of cases of a rare and dangerous disorder called eosinophilia-myalgia syndrome (EMS), leading to a temporary ban by the FDA. While the issue was later traced to contamination, this event highlighted the potential risks when too much tryptophan is consumed via supplements.