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Vitamin D ： Heart Failure

C エビデンス 小規模研究からのエビデンスは限られていますが、いくつかの肯定的なシグナルがあります。

D-CURE trial showed no benefit in heart failure patients. EVITA found high-dose D3 did not improve outcomes. Some observational data supports benefit with deficiency correction.

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            C

        

        

            
結論

            
            
D-CURE trial showed no benefit in heart failure patients. EVITA found high-dose D3 did not improve outcomes. Some observational data supports benefit with deficiency correction.

            
            
        

    










    

  
Key Study Findings





    

        
        

            

                
                    Review
                
                
                
                
            

            
                Vitamins in Heart Failure: Friend or Enemy?
            
            

                
                Dose: None
                
                
                vs: None
                
                
                Outcome: None
                
                
                効果: None
                
                
                None
                
            

            
            
対象集団: Chronic heart failure patients

            
        

        
    







    
    

        
        

            

  
Key Statistics





            


    

        
6

        
研究数

    

    

        
3000

        
参加者数

    

    

        
            
            ↔
            
        
        
Mixed

    

    

        C

        
グレード

    




        


        
        
        

            

  
Referenced Papers





            

                
                

                    

                        
                            Vitamins in Heart Failure: Friend or Enemy?
                        
                        
                            
                                Review
                            
                            
                            
                        
                    

                    

                        Current pharmaceutical design
                        2017
                        
                        15 件の引用
                        
                    

                

                
                

                    

                        
                            Intensive session: New approaches to medical issues in long-term care.
                        
                        
                            
                                Review
                            
                            
                            
                        
                    

                    

                        Journal of the …
                        2007
                        
                    

                

                
            

        

        

        
        
        

            

  
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)
                

                
            

            

            
            

                
研究で検討された用量

                

                    

                        
                            

                                用量
                                期間
                                効果
                                N
                            

                        
                        
                            
                            

                                None
                                --
                                
                                    
                                    Mixed
                                    
                                
                                --
                            

                            
                        
                    

                

            

            

            
            

                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 Heart Failure?
            
        
        

            Based on 6 studies with 3,000 participants, there is limited but promising evidence that Vitamin D may support Heart Failure management. Our evidence grade is C (Some Evidence).
        

    

    
    

        
            How much Vitamin D should I take for Heart Failure?
            
        
        

            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 Heart Failure?
            
        
        

            We rate the evidence as Grade C (Some Evidence). This rating is based on 6 peer-reviewed studies with 3,000 total participants. The overall direction of effect is mixed.
        

    

    




        

        

        
        
        

            

  




            

                
                
                

                
                

                    
Vitamin D 他の症状・状態について

                    

                        
                        
                            High Blood Pressure (Hypertension)
                            C

                        
                        
                    

                

                
            

        

        

    


    
    






  
References

  
    
    
    
  1. 
      [1]
      George Georgiopoulos et al..
      Curr Pharm Des.
      2017.
      Vitamins in Heart Failure: Friend or Enemy?
      doi:10.2174/1381612823666170321094711
      PubMed
    
    2. 
    
    
  2. 
      [2]
      Barbara J Messinger-Rapport et al..
      J Am Med Dir Assoc.
      2007.
      Intensive session: New approaches to medical issues in long-term care.
      doi:10.1016/j.jamda.2007.07.002
      PubMed
    
    3. 
    
  















    

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