Can calcium supplements cause elevated blood calcium levels?
                                
                                
                                •
                                
                                
                        
                                    
                                    3 min read                                
                            
                                According to the Mayo Clinic, taking too much calcium or vitamin D supplements over time can raise blood calcium levels. This is because while dietary calcium is generally well-regulated by the body, concentrated supplements can overwhelm this system, potentially leading to a serious condition known as hypercalcemia.