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Quercetin ： High Blood Pressure (Hypertension)

B

Meta-analysis of 17 RCTs: systolic -3.09 mmHg at >=500 mg/day. More effective in >=8-week studies and hypertensive subjects. Phytosome form preferred for bioavailability.

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            B

        

        

            
結論

            
            
Meta-analysis of 17 RCTs: systolic -3.09 mmHg at >=500 mg/day. More effective in >=8-week studies and hypertensive subjects. Phytosome form preferred for bioavailability.

            
            
        

    











    
    

        
        

            

  
Key Statistics





            


    

        
17

        
研究数

    

    

        
900

        
参加者数

    

    

        
            
            ↑
            
        
        
Positive

    

    

        B

        
グレード

    




        


        
        

        
        
        

            

  
Dosage & Usage





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


            
            

                
一般的な使用量

                

                    
                    

                        
general:

                        
500-1,000 mg/day

                    

                    
                    

                        
bloodpressuresupport:

                        
500-730 mg/day

                    

                    
                

                
                

                    上限量： Not formally established; up to 1,000 mg/day used in clinical trials
                

                
            

            

            

            
            

                推奨摂取タイミング： With meals; vitamin C co-supplementation may enhance bioavailability
            

            
        

        

        
        
        

            

  
Safety & Side Effects





            

                
                

                    
報告されている副作用

                    
    
                        
                        
  • 
                            ⚠
                            Generally well-tolerated
                        
    • 
                        
                        
  • 
                            ⚠
                            Headache (rare)
                        
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                            ⚠
                            Mild gastrointestinal discomfort
                        
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  • 
                            ⚠
                            Tingling in extremities (rare, high doses)
                        
    • 
                        
                    

                

                

                
                

                    
既知の相互作用

                    
    
                        
                        
  • 
                            ●
                            Antibiotics (quinolones — may reduce efficacy)
                        
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  • 
                            ●
                            Cyclosporine (may increase blood levels)
                        
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                            ●
                            Anticoagulants (may have mild antiplatelet effect)
                        
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  • 
                            ●
                            Blood pressure medications (additive effect)
                        
    • 
                        
                    

                

                

                
                

                    

                        耐容上限摂取量： Not formally established; up to 1,000 mg/day used in clinical trials
                    

                

                
            

            

                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 Quercetin help with High Blood Pressure (Hypertension)?
            
        
        

            Based on 17 studies with 900 participants, there is moderate evidence from clinical studies that Quercetin may support High Blood Pressure (Hypertension) management. Our evidence grade is B (Good Evidence).
        

    

    
    

        
            How much Quercetin should I take for High Blood Pressure (Hypertension)?
            
        
        

            Studies have used various dosages. A commonly studied range is 500-1,000 mg/day. Always consult your healthcare provider before starting any supplement regimen.
        

    

    
    

        
            Are there side effects of Quercetin?
            
        
        

            Reported side effects may include Generally well-tolerated, Headache (rare), Mild gastrointestinal discomfort, Tingling in extremities (rare, high doses). Most side effects are mild and dose-dependent. Consult your doctor if you experience any adverse reactions.
        

    

    
    

        
            How strong is the evidence for Quercetin and High Blood Pressure (Hypertension)?
            
        
        

            We rate the evidence as Grade B (Good Evidence). This rating is based on 17 peer-reviewed studies with 900 total participants. The overall direction of effect is positive.
        

    

    




        

        

        
        
        

            

  
Related Evidence





            

                
                
                

                
                

                    
Quercetin 他の症状・状態について

                    

                        
                        
                            Atherosclerosis
                            D

                        
                        
                    

                

                
            

        

        

    


    
    












    

        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。