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Acetyl-L-Carnitine for Oxidative Stress & Neuroinflammation

C

The ALCAR + ALA combination showed synergistic neuroprotective effects. Combined with Alpha-GPC, DHA, and phosphatidylserine, ALCAR reduced reactive oxygen species by 57% in preclinical models.

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            C

        

        

            
The Bottom Line

            
            
The ALCAR + ALA combination showed synergistic neuroprotective effects. Combined with Alpha-GPC, DHA, and phosphatidylserine, ALCAR reduced reactive oxygen species by 57% in preclinical models.

            
            
        

    










    

  
Key Study Findings





    

        
        

            

                
                    Other
                
                
                
                8.0 weeks
                
                
            

            
                n-3 polyunsaturated fatty acids supplementation enhances hippocampal functionality in aged mice.
            
            

                
                Dose: None
                
                
                vs: None
                
                
                Outcome: None
                
                
                Effect: None
                
                
                None
                
            

            
            
Population: men

            
        

        
    







    
    

        
        

            

  
Key Statistics





            


    

        
8

        
Studies

    

    

        
500

        
Participants

    

    

        
            
            ↑
            
        
        
Positive

    

    

        C

        
Grade

    




        


        
        
        

            

  
Referenced Papers





            

                
                

                    

                        
                            n-3 polyunsaturated fatty acids supplementation enhances hippocampal functionality in aged mice.
                        
                        
                            
                                Other
                            
                            
                            
                        
                    

                    

                        Frontiers in aging …
                        2014
                        
                        111 citations
                        
                    

                

                
            

        

        

        
        
        

            

  
Dosage & Usage





            
mg = milligrams · mcg = micrograms (1,000× smaller) · IU = International Units


            
            

                
Commonly Used Dosages

                

                    
                    

                        
general:

                        
500-2,000 mg/day

                    

                    
                    

                        
cognitivesupport:

                        
1,500-3,000 mg/day

                    

                    
                

                
                

                    Upper limit: Well-tolerated up to 3,000 mg/day
                

                
            

            

            
            

                
Dosages Studied in Research

                

                    

                        
                            

                                Dosage
                                Duration
                                Effect
                                N
                            

                        
                        
                            
                            

                                None
                                8.0 weeks
                                
                                    
                                    Positive
                                    
                                
                                --
                            

                            
                        
                    

                

            

            

            
            

                Best taken: Morning, on empty stomach or with meals
            

            
        

        

        
        
        

            

  
Safety & Side Effects





            

                
                

                    
Reported Side Effects

                    
    
                        
                        
  • 
                            ⚠
                            Gastrointestinal discomfort (nausea, vomiting, diarrhea)
                        
    • 
                        
                        
  • 
                            ⚠
                            Fishy body odor
                        
    • 
                        
                        
  • 
                            ⚠
                            Restlessness or insomnia
                        
    • 
                        
                        
  • 
                            ⚠
                            Increased appetite
                        
    • 
                        
                    

                

                

                
                

                    
Known Interactions

                    
    
                        
                        
  • 
                            ●
                            Anticoagulants (may increase bleeding risk)
                        
    • 
                        
                        
  • 
                            ●
                            Thyroid medications (may enhance thyroid hormone effects)
                        
    • 
                        
                        
  • 
                            ●
                            AZT (antiretroviral — may reduce neuropathy)
                        
    • 
                        
                    

                

                

                
                

                    

                        Tolerable upper intake: Well-tolerated up to 3,000 mg/day
                    

                

                
            

            

                Always consult your healthcare provider before starting any supplement.
            

        

        

        
        
        

            

  
Frequently Asked Questions





            




    
    

        
            Does Acetyl-L-Carnitine help with Oxidative Stress & Neuroinflammation?
            
        
        

            Based on 8 studies with 500 participants, there is limited but promising evidence that Acetyl-L-Carnitine may support Oxidative Stress & Neuroinflammation management. Our evidence grade is C (Some Evidence).
        

    

    
    

        
            How much Acetyl-L-Carnitine should I take for Oxidative Stress & Neuroinflammation?
            
        
        

            Studies have used various dosages. A commonly studied range is 500-2,000 mg/day. Always consult your healthcare provider before starting any supplement regimen.
        

    

    
    

        
            Are there side effects of Acetyl-L-Carnitine?
            
        
        

            Reported side effects may include Gastrointestinal discomfort (nausea, vomiting, diarrhea), Fishy body odor, Restlessness or insomnia, Increased appetite. Most side effects are mild and dose-dependent. Consult your doctor if you experience any adverse reactions.
        

    

    
    

        
            How strong is the evidence for Acetyl-L-Carnitine and Oxidative Stress & Neuroinflammation?
            
        
        

            We rate the evidence as Grade C (Some Evidence). This rating is based on 8 peer-reviewed studies with 500 total participants. The overall direction of effect is positive.
        

    

    




        

        

        
        
        

            

  
Related Evidence





            

                
                
                

                
                

                    
Acetyl-L-Carnitine for other conditions

                    

                        
                        
                            Age-Related Cognitive Decline
                            C

                        
                        
                    

                

                
            

        

        

    


    
    












    

        FDA Disclaimer:
        These statements have not been evaluated by the Food and Drug Administration. The products and information on this website are not intended to diagnose, treat, cure, or prevent any disease. The evidence grades presented are based on our analysis of published peer-reviewed research and do not constitute medical advice. Always consult your healthcare provider before starting any supplement regimen.