What Does Free Form L-Arginine Mean?
                                
                                
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                                    5 min read                                
                            
                                Over 99% of filtered L-arginine is typically reabsorbed by the kidneys, highlighting its importance in the body's metabolic processes. When shopping for supplements, you may see products labeled as 'free form L-arginine,' which distinguishes it from other forms of the amino acid found in food.