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Caffeine 用于 Exercise Performance for Weight Loss

A

Meta-analyses show 3-6 mg/kg caffeine improves endurance performance by 3-5%, strength by 2-5%, and sprint performance. Caffeine enhances fat oxidation during exercise by 10-30%. It is one of the most established ergogenic supplements alongside creatine.

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结论

            
            
Meta-analyses show 3-6 mg/kg caffeine improves endurance performance by 3-5%, strength by 2-5%, and sprint performance. Caffeine enhances fat oxidation during exercise by 10-30%. It is one of the most established ergogenic supplements alongside creatine.

            
            
        

    











    
    

        
        

            

  
Key Statistics





            


    

        
40

        
研究数量

    

    

        
5000

        
受试者

    

    

        
            
            ↑
            
        
        
Positive

    

    

        A

        
等级

    




        


        
        

        
        
        

            

  
Dosage & Usage





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


            
            

                
常用剂量

                

                    
                    

                        
general:

                        
100-200 mg/day

                    

                    
                    

                        
thermogenic:

                        
200-400 mg/day

                    

                    
                    

                        
preexercise:

                        
3-6 mg/kg body weight

                    

                    
                

                
                

                    上限： 400 mg/day (FDA general guideline for healthy adults)
                

                
            

            

            

            
            

                最佳服用时间： Morning or pre-exercise; avoid within 6 hours of bedtime; tolerance develops over 1-2 weeks
            

            
        

        

        
        
        

            

  
Safety & Side Effects





            

                
                

                    
已报告的副作用

                    
    
                        
                        
  • 
                            ⚠
                            Insomnia
                        
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  • 
                            ⚠
                            Anxiety and jitteriness
                        
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                            ⚠
                            Increased heart rate
                        
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  • 
                            ⚠
                            Digestive upset
                        
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  • 
                            ⚠
                            Tolerance development over 1-2 weeks
                        
    • 
                        
                    

                

                

                
                

                    
已知相互作用

                    
    
                        
                        
  • 
                            ●
                            Adenosine receptor agonists
                        
    • 
                        
                        
  • 
                            ●
                            Lithium (reduced clearance)
                        
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                            ●
                            Theophylline
                        
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  • 
                            ●
                            MAOIs
                        
    • 
                        
                        
  • 
                            ●
                            Other stimulants (additive effects)
                        
    • 
                        
                    

                

                

                
                

                    

                        可耐受最高摄入量： 400 mg/day (FDA general guideline for healthy adults)
                    

                

                
            

            

                在开始服用任何补充剂之前，请务必咨询您的医疗保健提供者。
            

        

        

        
        
        

            

  
Frequently Asked Questions





            




    
    

        
            Does Caffeine help with Exercise Performance for Weight Loss?
            
        
        

            Based on 40 studies with 5,000 participants, there is strong evidence from multiple clinical trials that Caffeine may support Exercise Performance for Weight Loss management. Our evidence grade is A (Strong Evidence).
        

    

    
    

        
            How much Caffeine should I take for Exercise Performance for Weight Loss?
            
        
        

            Studies have used various dosages. A commonly studied range is 100-200 mg/day. Always consult your healthcare provider before starting any supplement regimen.
        

    

    
    

        
            Are there side effects of Caffeine?
            
        
        

            Reported side effects may include Insomnia, Anxiety and jitteriness, Increased heart rate, Digestive upset. Most side effects are mild and dose-dependent. Consult your doctor if you experience any adverse reactions.
        

    

    
    

        
            How strong is the evidence for Caffeine and Exercise Performance for Weight Loss?
            
        
        

            We rate the evidence as Grade A (Strong Evidence). This rating is based on 40 peer-reviewed studies with 5,000 total participants. The overall direction of effect is positive.
        

    

    




        

        

        
        
        

            

  
Related Evidence





            

                
                

                    
其他成分用于 Exercise Performance for Weight Loss

                    

                        
                        
                            Ashwagandha
                            B

                        
                        
                        
                            Iron
                            C

                        
                        
                        
                            L-Carnitine
                            C

                        
                        
                        
                            Green Tea Extract (EGCG)
                            C

                        
                        
                    

                

                

                
                
                
            

        

        

    


    
    












    

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