I eat mostly Paleo for the third month now, and after a successful weight-loss, a plateau came.
Somehow intuitively I decided to further limit my carb intake, but after like 1-2 weeks, I've started to experience problems best described as lightheadedness, fatigue, and being thirsty even after drinking water. After researching, it seems to me the most probable cause is that I lost too much potassium.
In retrospective, it seems that I made several smaller errors, which accumulated and caused this problem - drinking more coffee (diuretic effect), forgot to drink enough water, ate too little vegetables, ate salty cheeses, and probably generally ate too much protein and too little fat.
I seems to slowly recovering (decided to eat more vegetables, bananas, and less salt), but I'd like to ask if you experienced something similar on LC diet, or even better, what do you do to prevent this.
But what I understood from all this is, that I have to be more responsible and careful when giving recommendation about dieting to anyone. At first I was enthusiastic about the Paleo and low carb lifestyle, and while I still am, now I see one can run into problems when not knowledgeable enough or experimenting wrongly. For now, I decided I will not talk about the low carb idea with other people and not suggest it to anyone until I understand better its risks and implications. So after all, it was a useful experience for me - although still having mild headache.
What I also see (only my subjective notion), that I am not sure if Paleo, or especially low carb dieting, is yet ready for mainstream adoption. I tried to roughly follow Blueprint and The paleo solution, and now I see they don't enough warn against potential risks - of course, they didn't encourage me to eat salty cheese, but still, I believe we need to be more cautions generally since some people might experimenting too much. Or, maybe I am just an exception and did some obviously stupid mistake.