What Vitamins Do You Lose When You Donate Blood?
                                
                                
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                                    4 min read                                
                            
                                Approximately 200–250 milligrams of iron are lost during a single whole blood donation. This loss triggers the body to use stored iron to create new red blood cells, leading to potential iron depletion rather than direct vitamin loss. However, several key vitamins play a crucial indirect role in the body's recovery process after you donate blood.