I'm agreeing with Wuv & Dana... sea salt was the first thing I thought of because I've been through the same thing... the half-teaspoon is where you start, but it's not set in stone... some folks need more, some less... I usually ingest somewhere between 1/2 & 3/4 tsp. per day... whenever I feel a little light-headed, I dump a little salt in my hand & lick it off... takes care of the problem almost immediately...
hugs
