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BrainCited

Vitamin D
Vitamin D

vitamin

别名: Vitamin D3, Cholecalciferol, Calciferol, Ergocalciferol (D2)

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About





            

                
Vitamin D is a neurosteroid hormone with receptors throughout the brain, particularly in the hippocampus and cerebral cortex. Deficiency, which affects 40% of geriatric memory clinic patients, is identified as a critical risk factor for cognitive decline. Supplementation supports calcium signaling in neurons, neurotrophic factor expression, and protection against oxidative stress and inflammation.

            

        

        

        
        
        

            

  
How It Works





            

                
Neurosteroid hormone with receptors in the hippocampus and cerebral cortex; supports calcium signaling in neurons, neurotrophic factor expression, neurotransmitter synthesis, and neuronal protection against oxidative stress and inflammation.

            

        

        

        
        
        

            

  
Evidence For Conditions





            

                

                    

                        
                            

                                健康状况
                                等级
                                研究数量
                                受试者
                                
                            

                        
                        
                            
                            

                                
                                    
                                        Nutritional Deficiency Cognitive Impairment
                                    
                                
                                
                                    B

                                
                                
                                    20
                                
                                
                                    4500
                                
                                
                                    
                                        查看 →
                                    
                                
                            

                            
                            

                                
                                    
                                        Depression-Related Cognitive Dysfunction
                                    
                                
                                
                                    C

                                
                                
                                    12
                                
                                
                                    2000
                                
                                
                                    
                                        查看 →
                                    
                                
                            

                            
                        
                    

                

            

        

        

        
        
        

            

  
Side Effects





            
    
                
                
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                    Hypercalcemia at very high doses
                
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                    Nausea and vomiting
                
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                    Kidney stones (rare, high doses)
                
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                    Weakness and fatigue
                
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Drug & Supplement Interactions





            
    
                
                
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                    Corticosteroids (reduce calcium absorption)
                
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                    Statins (both affect cholesterol pathways)
                
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                    Thiazide diuretics (additive calcium retention)
                
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                    Weight loss drugs (may reduce vitamin D absorption)
                
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                请务必告知您的医疗保健提供者您正在服用的所有补充剂。
            

        

        

        
        
        

            

  
Related Ingredients





            

                
                
                    Vitamin B6
                    
                
                
                
                    Vitamin E
                    
                
                
                
                    Niacin
                    
                
                
                
                    Vitamin B12
                    
                
                
                
                    Folate
                    
                
                
            

        

        
    


    
    












    

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