Is 5 mg of iron good?
                                
                                
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                                    6 min read                                
                            
                                The Recommended Dietary Allowance (RDA) for iron varies significantly by age, gender, and life stage, with adult men and postmenopausal women needing 8 mg per day, and premenopausal women requiring 18 mg per day. This variation raises questions about the efficacy and safety of a small dose, such as: is 5 mg of iron good?