People if you are having a headache it is your body telling you to feed it! Only time I get a headache is when I forget to eat, which is very rare these days, but when I do get a headache as soon as I eat it goes away.

Make sure you are getting magesium and potassium as well. These two minerals help with leg cramps and headaches as well.

DO NOT skip meals. This isn't a low fat, low calorie diet. This is LOW CARB, so bump up that calorie intake to replace the carbohydrates you are missing out on. Avg day for me is 1800 to 2000 calories, if I drop below that I stall out and don't lose anything.