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Vitamin D ： High Blood Pressure (Hypertension)

C

Meta-analyses show modest BP reduction (-2-6 mmHg) in deficient populations only. VITAL trial was negative for cardiovascular endpoints. Research suggests benefits may be limited to correcting deficiency.

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            C

        

        

            
結論

            
            
Meta-analyses show modest BP reduction (-2-6 mmHg) in deficient populations only. VITAL trial was negative for cardiovascular endpoints. Research suggests benefits may be limited to correcting deficiency.

            
            
        

    











    
    

        
        

            

  
Key Statistics





            


    

        
20

        
研究数

    

    

        
30000

        
参加者数

    

    

        
            
            ↔
            
        
        
Mixed

    

    

        C

        
グレード

    




        


        
        

        
        
        

            

  
Dosage & Usage





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


            
            

                
一般的な使用量

                

                    
                    

                        
general:

                        
600-800 IU/day

                    

                    
                    

                        
deficiencycorrection:

                        
4,000-5,000 IU/day (under medical supervision)

                    

                    
                    

                        
cardiovascularsupport:

                        
1,000-2,000 IU/day

                    

                    
                

                
                

                    上限量： 4,000 IU/day (100 mcg)
                

                
            

            

            

            
            

                推奨摂取タイミング： With a meal containing fat for better absorption
            

            
        

        

        
        
        

            

  
Safety & Side Effects





            

                
                

                    
報告されている副作用

                    
    
                        
                        
  • 
                            ⚠
                            Hypercalcemia at very high doses (fatigue, nausea, kidney stones)
                        
    • 
                        
                        
  • 
                            ⚠
                            Constipation
                        
    • 
                        
                        
  • 
                            ⚠
                            Generally very safe at recommended doses
                        
    • 
                        
                    

                

                

                
                

                    
既知の相互作用

                    
    
                        
                        
  • 
                            ●
                            Thiazide diuretics (may increase hypercalcemia risk)
                        
    • 
                        
                        
  • 
                            ●
                            Statins (theoretical interaction via CYP enzymes)
                        
    • 
                        
                        
  • 
                            ●
                            Corticosteroids (may reduce vitamin D absorption)
                        
    • 
                        
                        
  • 
                            ●
                            Weight loss medications (may reduce absorption of fat-soluble vitamins)
                        
    • 
                        
                    

                

                

                
                

                    

                        耐容上限摂取量： 4,000 IU/day (100 mcg)
                    

                

                
            

            

                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 Vitamin D help with High Blood Pressure (Hypertension)?
            
        
        

            Based on 20 studies with 30,000 participants, there is limited but promising evidence that Vitamin D may support High Blood Pressure (Hypertension) management. Our evidence grade is C (Some Evidence).
        

    

    
    

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

            Studies have used various dosages. A commonly studied range is 600-800 IU/day. Always consult your healthcare provider before starting any supplement regimen.
        

    

    
    

        
            Are there side effects of Vitamin D?
            
        
        

            Reported side effects may include Hypercalcemia at very high doses (fatigue, nausea, kidney stones), Constipation, Generally very safe at recommended doses. Most side effects are mild and dose-dependent. Consult your doctor if you experience any adverse reactions.
        

    

    
    

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

            We rate the evidence as Grade C (Some Evidence). This rating is based on 20 peer-reviewed studies with 30,000 total participants. The overall direction of effect is mixed.
        

    

    




        

        

        
        
        

            

  
Related Evidence





            

                
                
                

                
                

                    
Vitamin D 他の症状・状態について

                    

                        
                        
                            Heart Failure
                            C

                        
                        
                    

                

                
            

        

        

    


    
    












    

        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。