Deficit... potassium. But I can't tell you what to do about it because I don't know which diary it pertains to... the best way to link your diary to your question so that people know which one you're talking about is to go to your diary... at the bottom of the page, after your weekly comment, is a box where you can ask a question... asking it from there will directly link the diary to the question and make it easier for us to give you advice...
Good luck...