a funny thing i noticed: when i started taking magnesium oxide mixed with malic acid, my urine was quite cloudy for about a week or so. I thought maybe i had a mild urinary infection, but then i noticed it would leave a white chalky powder deposit on the end of my nob (along with the cobwebs and cheese). So either i was pissing out unabsorbed magnesium, or the mix of mag and malic was dissolving calcium deposits maybe in my kidneys. It didnt last, so suggests it may have been clearing calcite.