Who is most affected by vitamin K deficiency?
                                
                                
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                                    4 min read                                
                            
                                According to the Centers for Disease Control and Prevention (CDC), vitamin K deficiency bleeding (VKDB) can affect up to 1 in 14,000 to 1 in 25,000 exclusively breastfed infants in the U.S. without a prophylactic injection, highlighting that newborns are the most vulnerable group for vitamin K deficiency. Other at-risk groups include those with certain medical conditions or on specific medications.