What Nut Has the Most Tryptophan? A Guide to Sleep and Mood-Boosting Nuts
                                
                                
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                                    4 min read                                
                            
                                Tryptophan is an essential amino acid that your body cannot produce on its own. When seeking good dietary sources, many people wonder, "what nut has the most tryptophan?" The surprising answer is black walnuts, which contain a higher concentration than other popular nut varieties.