7. Don't ever starve yourself
. Dieting means cutting calories, but less isn't always more. "One of the biggest misconceptions I've seen - including among the women I'm training on the show - is that the less you eat, the more weight you'll lose," says Jillian. "Maybe at first. But your body will think you're dying from lack of food, and your metabolism will adjust by slowing to a crawl." Most women should never eat less than 1,200 calories a day.
I have never been a big believer in starving yourself.