Does Vitamin D Need a Carrier Protein? The Vital Role of DBP in Nutrient Transport
                                
                                
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                                    4 min read                                
                            
                                Did you know that less than 1% of the total circulating vitamin D is considered "free" and active? The vast majority is transported by a specific plasma protein, prompting the question: **Does vitamin D need a carrier protein**? The answer is a definitive yes, and understanding this mechanism is key to comprehending the vitamin's complex function and bioavailability in the human body.