What Foods Contain Harmine? A Guide to Its Natural Sources
                                
                                
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                                    3 min read                                
                            
                                A 2022 study revealed that concentrations of harmine in native Banisteriopsis caapi plants showed significant variability, with some samples containing up to 18.27 mg/g. Harmine, a beta-carboline alkaloid, is predominantly found in specific plant species, rather than common dietary foods.