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WeightCited

Alpha-Lipoic Acid for Obesity

B

Meta-analysis of 12 RCTs (n=534) found significant weight loss of 1.27 kg and BMI reduction of 0.43. A 20-week RCT (n=360) found 1,800 mg/day reduced body weight by 2.1%. Higher doses and longer durations showed greater effects.

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The Bottom Line

            
            
Meta-analysis of 12 RCTs (n=534) found significant weight loss of 1.27 kg and BMI reduction of 0.43. A 20-week RCT (n=360) found 1,800 mg/day reduced body weight by 2.1%. Higher doses and longer durations showed greater effects.

            
            
        

    











    
    

        
        

            

  
Key Statistics





            


    

        
12

        
Studies

    

    

        
534

        
Participants

    

    

        
            
            ↑
            
        
        
Positive

    

    

        B

        
Grade

    




        


        
        

        
        
        

            

  
Dosage & Usage





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


            
            

                
Commonly Used Dosages

                

                    
                    

                        
general:

                        
300-600 mg/day

                    

                    
                    

                        
ralaactiveform:

                        
150-300 mg/day

                    

                    
                    

                        
weightmanagement:

                        
600-1,800 mg/day

                    

                    
                

                
                

                    Upper limit: 1,800 mg/day; GI side effects at higher doses
                

                
            

            

            

            
            

                Best taken: 30 minutes before meals on empty stomach (food reduces absorption by ~30%)
            

            
        

        

        
        
        

            

  
Safety & Side Effects





            

                
                

                    
Reported Side Effects

                    
    
                        
                        
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                            ⚠
                            Nausea
                        
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                            Skin rash
                        
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                            ⚠
                            Hypoglycemia (when combined with diabetes medications)
                        
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                            ⚠
                            GI discomfort
                        
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Known Interactions

                    
    
                        
                        
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                            ●
                            Diabetes medications (may potentiate — hypoglycemia risk)
                        
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                            Thyroid medications (may affect thyroid hormone levels)
                        
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                            ●
                            Chemotherapy agents (antioxidant interaction)
                        
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                        Tolerable upper intake: 1,800 mg/day; GI side effects at higher doses
                    

                

                
            

            

                Always consult your healthcare provider before starting any supplement.
            

        

        

        
        
        

            

  
Frequently Asked Questions





            




    
    

        
            Does Alpha-Lipoic Acid help with Obesity?
            
        
        

            Based on 12 studies with 534 participants, there is moderate evidence from clinical studies that Alpha-Lipoic Acid may support Obesity management. Our evidence grade is B (Good Evidence).
        

    

    
    

        
            How much Alpha-Lipoic Acid should I take for Obesity?
            
        
        

            Studies have used various dosages. A commonly studied range is 300-600 mg/day. Always consult your healthcare provider before starting any supplement regimen.
        

    

    
    

        
            Are there side effects of Alpha-Lipoic Acid?
            
        
        

            Reported side effects may include Nausea, Skin rash, Hypoglycemia (when combined with diabetes medications), GI discomfort. Most side effects are mild and dose-dependent. Consult your doctor if you experience any adverse reactions.
        

    

    
    

        
            How strong is the evidence for Alpha-Lipoic Acid and Obesity?
            
        
        

            We rate the evidence as Grade B (Good Evidence). This rating is based on 12 peer-reviewed studies with 534 total participants. The overall direction of effect is positive.
        

    

    




        

        

        
        
        

            

  
Related Evidence





            

                
                
                

                
                

                    
Alpha-Lipoic Acid for other conditions

                    

                        
                        
                            Insulin Resistance
                            B

                        
                        
                    

                

                
            

        

        

    


    
    












    

        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.