How much iron is in liver supplements?
                                
                                
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                                    3 min read                                
                            
                                According to one manufacturer, a typical serving of two beef liver capsules may contain as little as 0.5 mg of iron. However, the key question is not just how much iron is in liver supplements, but rather the quality and bioavailability of that iron, which is significantly higher in this natural, whole-food source compared to many synthetic alternatives.