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Calcium ： High Blood Pressure (Hypertension)

C

Small meta-analytic BP reduction (-1.4 mmHg systolic). Overwhelmed by cardiovascular safety concerns from supplement studies. Dietary calcium preferred.

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            C

        

        

            
結論

            
            
Small meta-analytic BP reduction (-1.4 mmHg systolic). Overwhelmed by cardiovascular safety concerns from supplement studies. Dietary calcium preferred.

            
            
        

    











    
    

        
        

            

  
Key Statistics





            


    

        
13

        
研究数

    

    

        
1500

        
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

                

                    
                    

                        
note:

                        
Prefer dietary sources; limit supplements to 500 mg/dose

                    

                    
                    

                        
general:

                        
1,000-1,200 mg/day from diet plus supplements

                    

                    
                

                
                

                    上限量： 2,000-2,500 mg/day (total from diet and supplements)
                

                
            

            

            

            
            

                推奨摂取タイミング： Divide doses (500 mg max per dose); carbonate with meals; citrate any time
            

            
        

        

        
        
        

            

  
Safety & Side Effects





            

                
                

                    
報告されている副作用

                    
    
                        
                        
  • 
                            ⚠
                            Constipation (especially carbonate form)
                        
    • 
                        
                        
  • 
                            ⚠
                            Potential increased MI risk with high-dose supplements (controversial)
                        
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  • 
                            ⚠
                            Kidney stones at excessive doses
                        
    • 
                        
                        
  • 
                            ⚠
                            Gas, bloating
                        
    • 
                        
                    

                

                

                
                

                    
既知の相互作用

                    
    
                        
                        
  • 
                            ●
                            Thyroid medications (separate by 4 hours)
                        
    • 
                        
                        
  • 
                            ●
                            Bisphosphonates (separate by 30-60 minutes)
                        
    • 
                        
                        
  • 
                            ●
                            Iron supplements (reduced absorption — separate by 2 hours)
                        
    • 
                        
                        
  • 
                            ●
                            Certain antibiotics (reduced absorption)
                        
    • 
                        
                        
  • 
                            ●
                            Vitamin K2 (may help direct supplemental calcium to bones, not arteries)
                        
    • 
                        
                    

                

                

                
                

                    

                        耐容上限摂取量： 2,000-2,500 mg/day (total from diet and supplements)
                    

                

                
            

            

                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 Calcium help with High Blood Pressure (Hypertension)?
            
        
        

            Based on 13 studies with 1,500 participants, there is limited but promising evidence that Calcium may support High Blood Pressure (Hypertension) management. Our evidence grade is C (Some Evidence).
        

    

    
    

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

            Studies have used various dosages. A commonly studied range is Prefer dietary sources; limit supplements to 500 mg/dose. Always consult your healthcare provider before starting any supplement regimen.
        

    

    
    

        
            Are there side effects of Calcium?
            
        
        

            Reported side effects may include Constipation (especially carbonate form), Potential increased MI risk with high-dose supplements (controversial), Kidney stones at excessive doses, Gas, bloating. Most side effects are mild and dose-dependent. Consult your doctor if you experience any adverse reactions.
        

    

    
    

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

            We rate the evidence as Grade C (Some Evidence). This rating is based on 13 peer-reviewed studies with 1,500 total participants. The overall direction of effect is mixed.
        

    

    




        

        

        
        
        

            

  
Related Evidence





            

                
                
                

                
            

        

        

    


    
    












    

        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。