Sally Norton posted about potassium oxalate in blood tubes. She said the Mg binds the oxalate which causes metabolic enzymes to not be activated. My comments: does the body make endogenous oxalate then to keep glucose from entering the cell? There could be many reasons why it would want to do this. Especially if there aren’t enough carrier proteins, vitamins, and minerals to go through glycolysis, TCA, and ETC.
This would also explain the oxalate dumping seen with either reducing glucose intake, or taking vitamins and minerals that ensure proper metabolism.