At the other end of the spectrum, my SIL is pregnant with her first, a girl, and she wouldn't touch anything sugary or fatty with a ten foot pole. She's a recovering anorexic and has a really hard time eating anything that would dare put on fat. So while she eats pretty healthily, her diet is very low-fat (almonds and avocado are about the only "fatty" things she would ever eat) and she often skips breakfast and even lunch.