How Much Tryptophan Is in 1 Cup of Milk?
                                
                                
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                                    4 min read                                
                            
                                According to USDA data, a cup of whole milk contains approximately 98 mg of tryptophan. The exact amount of tryptophan is in 1 cup of milk can vary slightly depending on the fat content and specific processing methods, but it serves as a reliable source of this essential amino acid.