What protein carries vitamin D?
                                
                                
                                •
                                
                                
                        
                                    
                                    3 min read                                
                            
                                Approximately 85-90% of vitamin D in the bloodstream is bound to a specific carrier, addressing the question of what protein carries vitamin D. This essential protein, known as vitamin D-binding protein (DBP), is critical for transporting vitamin D metabolites throughout the body to where they are needed.