What is a D5 Deficiency?
                                
                                
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                                    5 min read                                
                            
                                While not a typical vitamin deficiency, a D5 deficiency refers to a genetic condition affecting the dopamine receptor D5 (D5R), which plays a crucial role in cognitive functions like learning and memory. Research, primarily using mouse models, has highlighted the profound neurological consequences of this deficiency, distinguishing it from more common deficiencies.