Two of the legends about distilled water are that it is somehow far superior because it is absorbed more quickly or so harmful that it leaches all the minerals out of your body. Neither claim is based on facts. Distilled water is simply boiled water that has condensed from steam and left its mineral content behind. There are many observational reports that consumption of hard water is healthy, particularly for reducing heart disease. Your body does not absorb distilled water better than tap water.
Hard water contains high levels of calcium and magnesium.
However, there are such low levels of minerals in most water supplies that they are insignificant compared to the amounts of minerals in foods. Therefore, your body would never notice if all the water you drank was distilled. Now when nutrition news gets confusing, there IS a place to go to get the real story. Our FREE daily email newsletter, Nutrition News Focus, helps you make sense of it all. It's written by Dr. David Klurfeld, Chairman and Professor of the Department of Nutrition and Food Science at Wayne State University.