This is my first time doing psmf. I stayed around 500 cal Tues-Fri, and had a steak Sat night as my "free" meal. Sat morning I had a couple episodes of light-headedness. I assume that's from being so low-calorie, right? And there's not much I can do about that. I'm taking some mg/sodium/potassium, though not high doses. I worry about the amount of potassium recommended, because I keep reading it's dangerous. Right now I'm doing 1 99mg potassium, and a couple g sodium. (I do mg all the time I'm on low carb to keep things moving, though that doesn't seem to be an issue right now. Maybe the Bronkaid/caffeine is loosening things up for me). Just doing 1 dose of the Bronkaid/caffeine for now, as I adjust.