Eat Smart -- Be a Student of Weight Loss

Most teens gain weight when they go to college. Daphne Oz (daughter of RD's own Dr. Oz) lost weight! Slim-eating secrets from her book, The Dorm Room Diet:

Water works Drink half of your body weight in ounces of water (a 150-pound person would drink 75 ounces a day) to help suppress your appetite.

Do the math Before you eat a candy bar or some other fattening treat, stop and count your age. Much of this eating is impulsive, and you don't take the time to think about whether you really want to eat or not. If you still want a bite after your countdown, feel free: You've made a conscious decision.

Slim salads Use your own healthy salad dressing made with olive oil, balsamic vinegar, a dash of soy sauce and a teaspoon of mustard.

Unwrap your sandwich A tortilla wrap is a much more condensed form of carbs than regular bread and has almost twice the calories of two pieces of bread.