What are the four iron containing proteins?
                                
                                
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                                    4 min read                                
                            
                                According to the UCSF Health, approximately 70 percent of your body's iron is found in two essential proteins. But what are the four iron containing proteins that play different, critical roles? These are hemoglobin, myoglobin, transferrin, and ferritin, which manage the body's iron supply from transport to storage.