What are the major and trace elements?
                                
                                
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                                    3 min read                                
                            
                                Trace elements make up less than 0.1% of an organism's total weight, yet they are indispensable for countless biological processes, from enzyme function to hormone production. Understanding what are the major and trace elements is essential for grasping the fundamental chemical building blocks of all matter, whether in the human body or the Earth's crust.