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Green Tea Extract (EGCG) для Obesity

B Доказательства По меньшей мере одно рандомизированное исследование подтверждает это, с в целом согласованными результатами.

Cochrane review of 14 RCTs found EGCG plus caffeine produces modest but statistically significant weight loss of 1.0-1.3 kg over 12 weeks. Twenty-four-hour energy expenditure increased approximately 5% and fat oxidation approximately 16%, with effects more pronounced in Asian populations and habitual low-caffeine consumers.

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Итог

            
            
Cochrane review of 14 RCTs found EGCG plus caffeine produces modest but statistically significant weight loss of 1.0-1.3 kg over 12 weeks. Twenty-four-hour energy expenditure increased approximately 5% and fat oxidation approximately 16%, with effects more pronounced in Asian populations and habitual low-caffeine consumers.

            
            
        

    










    

  
Key Study Findings





    

        
        

            

                
                    Review
                
                
                
                
            

            
                Inflammation, a Double-Edge Sword for Cancer and Other Age-Related Diseases.
            
            

                
                Dose: None
                
                
                или: None
                
                
                Outcome: None
                
                
                Эффект: None
                
                
                None
                
            

            
            
Популяция: None

            
        

        
        

            

                
                    In Vitro
                
                
                
                8 weeks
                
                
            

            
                Green tea extract improves high fat diet-induced hypothalamic inflammation, without affecting the serotoninergic system.
            
            

                
                Dose: None
                
                
                или: High-fat diet control
                
                
                Outcome: Hypothalamic inflammation markers (TLR4 pathway)
                
                
                Эффект: None
                
                
                None
                
            

            
            
Популяция: Male Swiss mice fed high-fat diet

            
        

        
    







    
    

        
        

            

  
Key Statistics





            


    

        
14

        
Исследования

    

    

        
1500

        
Участники

    

    

        
            
            ↑
            
        
        
Positive

    

    

        B

        
Оценка

    




        


        
        
        

            

  
Referenced Papers





            

                
                

                    

                        
                            Inflammation, a Double-Edge Sword for Cancer and Other Age-Related Diseases.
                        
                        
                            
                                Review
                            
                            
                            
                        
                    

                    

                        Frontiers in immunology
                        2018
                        
                        200 цитирований
                        
                    

                

                
                

                    

                        
                            Green tea extract improves high fat diet-induced hypothalamic inflammation, without affecting the serotoninergic system.
                        
                        
                            
                                Other
                            
                            
                            
                        
                    

                    

                        The Journal of …
                        2014
                        
                        33 цитирований
                        
                    

                

                
            

        

        

        
        
        

            

  
Dosage & Usage





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


            
            

                
Часто используемые дозировки

                

                    
                    

                        
general:

                        
250-500 mg/day standardized to 50% EGCG

                    

                    
                    

                        
equivalent:

                        
3-5 cups green tea/day

                    

                    
                    

                        
weightmanagement:

                        
400-800 mg EGCG/day

                    

                    
                

                
                

                    Верхний предел: 800 mg EGCG/day (hepatotoxicity risk above this; rare but documented)
                

                
            

            

            
            

                
Дозировки, изученные в исследованиях

                

                    

                        
                            

                                Дозировка
                                Длительность
                                Эффект
                                N
                            

                        
                        
                            
                            

                                None
                                --
                                
                                    
                                    Positive
                                    
                                
                                --
                            

                            
                            

                                None
                                8 weeks
                                
                                    
                                    Positive
                                    
                                
                                --
                            

                            
                        
                    

                

            

            

            
            

                Лучшее время приёма: With meals (reduces nausea risk); avoid on empty stomach; space from iron-containing foods/supp
            

            
        

        

        
        
        

            

  
Safety & Side Effects





            

                
                

                    
Зарегистрированные побочные эффекты

                    
    
                        
                        
  • 
                            ⚠
                            Nausea on empty stomach
                        
    • 
                        
                        
  • 
                            ⚠
                            Insomnia (caffeine content)
                        
    • 
                        
                        
  • 
                            ⚠
                            Rare hepatotoxicity at high doses
                        
    • 
                        
                        
  • 
                            ⚠
                            Reduced iron absorption
                        
    • 
                        
                    

                

                

                
                

                    
Известные взаимодействия

                    
    
                        
                        
  • 
                            ●
                            Nadolol (reduced bioavailability)
                        
    • 
                        
                        
  • 
                            ●
                            Iron supplements (reduced absorption)
                        
    • 
                        
                        
  • 
                            ●
                            Blood thinners (theoretical)
                        
    • 
                        
                        
  • 
                            ●
                            Other stimulants (additive effects)
                        
    • 
                        
                    

                

                

                
                

                    

                        Допустимый верхний уровень потребления: 800 mg EGCG/day (hepatotoxicity risk above this; rare but documented)
                    

                

                
            

            

                Всегда консультируйтесь с врачом перед началом приёма любых добавок.Всегда консультируйтесь с лечащим врачом перед началом приёма любой добавки.
            

        

        

        
        
        

            

  
Frequently Asked Questions





            




    
    

        
            Does Green Tea Extract (EGCG) help with Obesity?
            
        
        

            Based on 14 studies with 1,500 participants, there is moderate evidence from clinical studies that Green Tea Extract (EGCG) may support Obesity management. Our evidence grade is B (Good Evidence).
        

    

    
    

        
            How much Green Tea Extract (EGCG) should I take for Obesity?
            
        
        

            Studies have used various dosages. A commonly studied range is 250-500 mg/day standardized to 50% EGCG. Always consult your healthcare provider before starting any supplement regimen.
        

    

    
    

        
            Are there side effects of Green Tea Extract (EGCG)?
            
        
        

            Reported side effects may include Nausea on empty stomach, Insomnia (caffeine content), Rare hepatotoxicity at high doses, Reduced iron absorption. Most side effects are mild and dose-dependent. Consult your doctor if you experience any adverse reactions.
        

    

    
    

        
            How strong is the evidence for Green Tea Extract (EGCG) and Obesity?
            
        
        

            We rate the evidence as Grade B (Good Evidence). This rating is based on 14 peer-reviewed studies with 1,500 total participants. The overall direction of effect is positive.
        

    

    




        

        

        
        
        

            

  




            

                
                
                

                
                

                    
Green Tea Extract (EGCG) для других состояний

                    

                        
                        
                            Abdominal Fat Reduction
                            B

                        
                        
                        
                            Exercise Performance for Weight Loss
                            C

                        
                        
                        
                            Weight Loss Plateau
                            C

                        
                        
                    

                

                
            

        

        

    


    
    






  
References

  
    
    
    
  1. 
      [1]
      Subash Chandra Gupta et al..
      Front Immunol.
      2018.
      Inflammation, a Double-Edge Sword for Cancer and Other Age-Related Diseases.
      doi:10.3389/fimmu.2018.02160
      PubMed
    
    2. 
    
    
  2. 
      [2]
      Marcos H Okuda et al..
      J Nutr Biochem.
      2014.
      Green tea extract improves high fat diet-induced hypothalamic inflammation, without affecting the serotoninergic system.
      doi:10.1016/j.jnutbio.2014.05.012
      PubMed
    
    3. 
    
  















    

        Отказ от ответственности FDA:
        Данные утверждения не были оценены Управлением по санитарному надзору за качеством пищевых продуктов и медикаментов (FDA). Продукты и информация на этом сайте не предназначены для диагностики, лечения, излечения или профилактики каких-либо заболеваний. Представленные оценки доказательности основаны на нашем анализе опубликованных рецензируемых исследований и не являются медицинской консультацией. Всегда консультируйтесь с лечащим врачом перед началом приёма любых добавок.