Does L-lysine Cancel Out Arginine? A Closer Look at the Amino Acid Rivalry
                                
                                
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                                    3 min read                                
                            
                                Several viruses, most notably the herpes simplex virus, require a steady supply of arginine for replication and growth. This fact leads many to question: does L-lysine cancel out arginine by competing for the same pathways, thereby inhibiting viral activity?