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" I just started Good Housekeeping&amp;#039;s The Supermarket Diet Boot Camp phase. My concern is that, since starting, I&amp;#039;ve had a nagging headache and I&amp;#039;ve been grumpy. I know I need time to adjust to the better eating habits, but could the headache be a sign that I&amp;#039;m not consuming enough calories? Yes -- you&amp;#039;re probably too hungry. The diet begins with a low, 1,200-calorie Boot Camp phase that lasts two weeks but, as I mention throughout the book, it&amp;#039;s okay to jump a calorie level (to the 1,500-calories-per-day Keep on Losin&amp;#039; phase) if your stomach feels too empty. Start by adding 100 calories a day to the Boot Camp plan. If that&amp;#039;s not enough, go for 200 calories per day. Or, if you&amp;#039;re very active and can lose weight on 1,800 calories daily, skip both the Boot Camp and Keep on Losin&amp;#039; programs and start on the Stay Slim Maintenance plan. "^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.goodhousekeeping.com/health/diet-nutrition/advice/a21335/advice-qa-enough-calories-1006/>