i decided to eat 1 meal a day when i was 13, and i lost like 2 stone and havent put it on since...no excercise for me mwahahaha
but seriously, it's not good. you get major headaches from lack of food, and it's sooooo tempting to just pig out on anything when you get really hungry. withdrawl from food is NOT good.
do what everyone else has been suggesting, eat little and often. and try some fat burning exercise like running, been a lot of posts on that lately. helps lose weight, tones, and keeps the ol' ticker in tip top shape. (that's what im doin now, so i take back the 'no exerise for me').
good luck