Which Group is at Greatest Risk for Vitamin B12 Deficiency?
                                
                                
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                                    4 min read                                
                            
                                According to the National Institutes of Health, pernicious anemia is the most common cause of clinically evident vitamin B12 deficiency worldwide. Understanding which group is at greatest risk for vitamin B12 deficiency is crucial for early detection and prevention of serious health complications, especially since many factors can interfere with absorption.