L-Arginine vs L-Citrulline: What Is Better for Nitric Oxide Production?
                                
                                
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                                    4 min read                                
                            
                                According to extensive research, L-citrulline raises plasma L-arginine levels approximately 30% more effectively than supplementing with L-arginine alone, due to its superior absorption. This critical difference is key to understanding which amino acid is the more efficient choice for boosting nitric oxide.