Is It Bad to Have Magnesium in Water? The Surprising Truth About Hard Water
                                
                                
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                                    5 min read                                
                            
                                According to a meta-analysis involving over 77,000 cases, higher levels of magnesium in drinking water are inversely associated with the risk of coronary heart disease mortality. So, while high magnesium can cause nuisance hard water issues, is it bad to have magnesium in water? The truth is more complex than you might think.