Oysters: What is the Most Reliable Source of Zinc?
                                
                                
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                                    4 min read                                
                            
                                According to the National Institutes of Health, zinc is the second-most abundant trace mineral in the human body after iron, essential for immune function, wound healing, and cell growth. While many foods contain zinc, the 'most reliable' source is a matter of both high concentration and superior bioavailability, a combination that animal-based foods excel at.