Skip to main content
WeightCited

Whey Protein ： Muscle Preservation During Weight Loss

A

Meta-analysis of 14 RCTs (n=626) found whey protein preserved lean mass while reducing fat mass (1.49 kg) and waist circumference (1.32 cm) during caloric restriction. High leucine content maximally stimulates mTOR-mediated muscle protein synthesis.

<\/script>\n
`; }, get iframeSnippet() { const domain = 'weightcited.com'; const params = 'ingredient\u003Dwhey\u002Dprotein\u0026condition\u003Dmuscle\u002Dpreservation\u002Dduring\u002Dweight\u002Dloss'; return ``; }, get activeSnippet() { return this.method === 'script' ? this.scriptSnippet : this.iframeSnippet; }, copySnippet() { navigator.clipboard.writeText(this.activeSnippet).then(() => { this.copied = true; setTimeout(() => { this.copied = false; }, 2000); }); } }" @keydown.escape.window="open = false" @click.outside="open = false">

Embed This Widget

Style



      
      
    


    
    

      Widget powered by
      .
      Free, no account required.
    

  




    








    

        

            A

        

        

            
結論

            
            
Meta-analysis of 14 RCTs (n=626) found whey protein preserved lean mass while reducing fat mass (1.49 kg) and waist circumference (1.32 cm) during caloric restriction. High leucine content maximally stimulates mTOR-mediated muscle protein synthesis.

            
            
        

    











    
    

        
        

            

  
Key Statistics





            


    

        
14

        
研究数

    

    

        
626

        
参加者数

    

    

        
            
            ↑
            
        
        
Positive

    

    

        A

        
グレード

    




        


        
        

        
        
        

            

  
Dosage & Usage





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


            
            

                
一般的な使用量

                

                    
                    

                        
general:

                        
20-40 g/serving

                    

                    
                    

                        
mealreplacement:

                        
25-50 g/serving

                    

                    
                    

                        
weightmanagement:

                        
1.2-1.6 g protein/kg/day total (whey supplementing diet)

                    

                    
                

                
                

                    上限量： No established UL for protein; kidney-healthy adults can safely consume 2.0+ g/kg/day
                

                
            

            

            

            
            

                推奨摂取タイミング： Post-exercise (30 min window), between meals, or as meal replacement
            

            
        

        

        
        
        

            

  
Safety & Side Effects





            

                
                

                    
報告されている副作用

                    
    
                        
                        
  • 
                            ⚠
                            Bloating
                        
    • 
                        
                        
  • 
                            ⚠
                            Gas
                        
    • 
                        
                        
  • 
                            ⚠
                            Digestive discomfort (especially with lactose sensitivity)
                        
    • 
                        
                        
  • 
                            ⚠
                            Acne (anecdotal)
                        
    • 
                        
                    

                

                

                
                

                    
既知の相互作用

                    
    
                        
                        
  • 
                            ●
                            Levodopa (protein may reduce absorption)
                        
    • 
                        
                        
  • 
                            ●
                            Antibiotics (some bind to calcium in whey)
                        
    • 
                        
                    

                

                

                
                

                    

                        耐容上限摂取量： No established UL for protein; kidney-healthy adults can safely consume 2.0+ g/kg/day
                    

                

                
            

            

                サプリメントの摂取を開始する前に、必ず医療専門家にご相談ください。
            

        

        

        
        
        

            

  
Frequently Asked Questions





            




    
    

        
            Does Whey Protein help with Muscle Preservation During Weight Loss?
            
        
        

            Based on 14 studies with 626 participants, there is strong evidence from multiple clinical trials that Whey Protein may support Muscle Preservation During Weight Loss management. Our evidence grade is A (Strong Evidence).
        

    

    
    

        
            How much Whey Protein should I take for Muscle Preservation During Weight Loss?
            
        
        

            Studies have used various dosages. A commonly studied range is 20-40 g/serving. Always consult your healthcare provider before starting any supplement regimen.
        

    

    
    

        
            Are there side effects of Whey Protein?
            
        
        

            Reported side effects may include Bloating, Gas, Digestive discomfort (especially with lactose sensitivity), Acne (anecdotal). Most side effects are mild and dose-dependent. Consult your doctor if you experience any adverse reactions.
        

    

    
    

        
            How strong is the evidence for Whey Protein and Muscle Preservation During Weight Loss?
            
        
        

            We rate the evidence as Grade A (Strong Evidence). This rating is based on 14 peer-reviewed studies with 626 total participants. The overall direction of effect is positive.
        

    

    




        

        

        
        
        

            

  
Related Evidence





            

                
                

                    
に関する他の成分： Muscle Preservation During Weight Loss

                    

                        
                        
                            BCAAs
                            B

                        
                        
                    

                

                

                
                

                    
Whey Protein 他の症状・状態について

                    

                        
                        
                            Appetite Control
                            B

                        
                        
                        
                            Post-Bariatric Nutritional Support
                            B

                        
                        
                    

                

                
            

        

        

    


    
    












    

        FDAに関する免責事項:
        これらの記述は米国食品医薬品局（FDA）による評価を受けていません。本ウェブサイトの製品および情報は、疾病の診断、治療、治癒、または予防を目的としたものではありません。表示されているエビデンスグレードは、公開された査読済み研究の分析に基づいており、医療上の助言を構成するものではありません。サプリメントの摂取を開始する前に、必ず医療専門家にご相談ください。