How much protein is in period blood?
                                
                                
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                                    3 min read                                
                            
                                In a 2012 proteomic analysis, researchers identified 1061 proteins in menstrual blood, with 385 of these being unique and not found in either circulating blood or vaginal fluid. This reveals that answering 'How much protein is in period blood?' is more complex than simply referencing the protein concentration of typical venous blood. The overall protein content is lower than regular blood, but its unique proteome offers valuable insights into reproductive health.