How long to not take iron supplements before a blood test?
                                
                                
                                •
                                
                                
                        
                                    
                                    4 min read                                
                            
                                Clinical guidelines often suggest stopping iron supplements at least 24 to 48 hours before an iron-related blood test to ensure accurate readings. Knowing exactly how long to not take iron supplements before a blood test is crucial to avoid false results, which can impact your diagnosis and treatment plan. This guide explains why preparation is key for reliable lab work.