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Lion's Mane Mushroom for Memory Loss

C

Research suggests hericenones and erinacines stimulate nerve growth factor synthesis, which may support memory function. Small but promising RCTs indicate potential benefits; larger studies are needed.

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            C

        

        

            
The Bottom Line

            
            
Research suggests hericenones and erinacines stimulate nerve growth factor synthesis, which may support memory function. Small but promising RCTs indicate potential benefits; larger studies are needed.

            
            
        

    










    

  
Key Study Findings





    

        
        

            

                
                    Other
                
                
                
                
            

            
                Hericium erinaceus (Bull.) Pers. Ethanolic Extract with Antioxidant Properties on Scopolamine-Induced Memory Deficits in a …
            
            

                
                Dose: None
                
                
                vs: None
                
                
                Outcome: whether ethanolic extract from the fungal biomass of …
                
                
                Effect: None
                
                
                None
                
            

            
            
Population: None

            
        

        
        

            

                
                    Other
                
                
                
                
            

            
                Characterization of α-glucosidase inhibitory constituents of the fruiting body of lion's mane mushroom (Hericium erinaceus).
            
            

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

            
            
Population: None

            
        

        
    







    
    

        
        

            

  
Key Statistics





            


    

        
5

        
Studies

    

    

        
350

        
Participants

    

    

        
            
            ↑
            
        
        
Positive

    

    

        C

        
Grade

    




        


        
        
        

            

  
Referenced Papers





            

                
                

                    

                        
                            Hericium erinaceus (Bull.) Pers. Ethanolic Extract with Antioxidant Properties on Scopolamine-Induced Memory Deficits in a Zebrafish Model of Cognitive Impairment.
                        
                        
                            
                                Other
                            
                            
                            
                        
                    

                    

                        Journal of fungi …
                        2021
                        
                        14 citations
                        
                    

                

                
                

                    

                        
                            Characterization of α-glucosidase inhibitory constituents of the fruiting body of lion's mane mushroom (Hericium erinaceus).
                        
                        
                            
                                Other
                            
                            
                            
                        
                    

                    

                        Journal of ethnopharmacology
                        2020
                        
                        28 citations
                        
                    

                

                
            

        

        

        
        
        

            

  
Dosage & Usage





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


            
            

                
Commonly Used Dosages

                

                    
                    

                        
general:

                        
500-3,000 mg/day

                    

                    
                    

                        
cognitivesupport:

                        
1,000-3,000 mg/day of fruiting body extract

                    

                    
                

                
                

                    Upper limit: Not established; well-tolerated up to 3,000 mg/day
                

                
            

            

            
            

                
Dosages Studied in Research

                

                    

                        
                            

                                Dosage
                                Duration
                                Effect
                                N
                            

                        
                        
                            
                            

                                None
                                --
                                
                                    
                                    Positive
                                    
                                
                                --
                            

                            
                            

                                None
                                --
                                
                                    
                                    Positive
                                    
                                
                                --
                            

                            
                        
                    

                

            

            

            
            

                Best taken: With meals; effects observed after 8-16 weeks of consistent use
            

            
        

        

        
        
        

            

  
Safety & Side Effects





            

                
                

                    
Reported Side Effects

                    
    
                        
                        
  • 
                            ⚠
                            Mild gastrointestinal discomfort
                        
    • 
                        
                        
  • 
                            ⚠
                            Skin rash in rare cases (especially with allergies to mushrooms)
                        
    • 
                        
                        
  • 
                            ⚠
                            Potential itching or tingling sensations
                        
    • 
                        
                    

                

                

                
                

                    
Known Interactions

                    
    
                        
                        
  • 
                            ●
                            Anticoagulants (may have mild antiplatelet effects)
                        
    • 
                        
                        
  • 
                            ●
                            Antidiabetic medications (may lower blood sugar)
                        
    • 
                        
                        
  • 
                            ●
                            Immunosuppressants (may modulate immune function)
                        
    • 
                        
                    

                

                

                
                

                    

                        Tolerable upper intake: Not established; well-tolerated up to 3,000 mg/day
                    

                

                
            

            

                Always consult your healthcare provider before starting any supplement.
            

        

        

        
        
        

            

  
Frequently Asked Questions





            




    
    

        
            Does Lion's Mane Mushroom help with Memory Loss?
            
        
        

            Based on 5 studies with 350 participants, there is limited but promising evidence that Lion's Mane Mushroom may support Memory Loss management. Our evidence grade is C (Some Evidence).
        

    

    
    

        
            How much Lion's Mane Mushroom should I take for Memory Loss?
            
        
        

            Studies have used various dosages. A commonly studied range is 500-3,000 mg/day. Always consult your healthcare provider before starting any supplement regimen.
        

    

    
    

        
            Are there side effects of Lion's Mane Mushroom?
            
        
        

            Reported side effects may include Mild gastrointestinal discomfort, Skin rash in rare cases (especially with allergies to mushrooms), Potential itching or tingling sensations. Most side effects are mild and dose-dependent. Consult your doctor if you experience any adverse reactions.
        

    

    
    

        
            How strong is the evidence for Lion's Mane Mushroom and Memory Loss?
            
        
        

            We rate the evidence as Grade C (Some Evidence). This rating is based on 5 peer-reviewed studies with 350 total participants. The overall direction of effect is positive.
        

    

    




        

        

        
        
        

            

  
Related Evidence





            

                
                
                

                
                

                    
Lion's Mane Mushroom for other conditions

                    

                        
                        
                            Mild Cognitive Impairment (MCI)
                            B

                        
                        
                        
                            Brain Fog
                            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.