For the person with the kidney stone it is a lack of magnesium I have made the four primary types of kidney stones and at one point I was producing three different types of stones at the same time after adding magnesium citrate powdered to my water my kidney stones have gone away at one point I had over a hundred tiny kidney stones and since they were too small for treatment I got to pass some of them but luckily the Magnesium helped , don't waste your time with magnesium tablets they don't dissolve nor get absorbed quick enough