Brandy was following a vegan diet, but gave it up in favor of the Zone Diet. The zone diet is very much a low calorie diet, every meal & snack should be 40% of calories from carbohydrate, 30% from protein & 30% from fat. In Zone Language it is called 40:30:30 ratio. Check out the book The Zone Diet, to get started, or visit http://www.zonediet.com/
Brandy jogs to stay fit. She has been into Tae bo (Billy Blanks Tae Bo).

Zone Diet bars are designed to provide freedom from hunger for up to 3 hours. During this time you are burning stored body fat as your primary source of energy instead of storing incoming calories as fat. They have 210-230 calories, 15g protein. Flavors include; chocolate fudge, chocolate raspberry, lemon yogurt, roasted peanut, cocoa crisp, iced oatmeal raisin, sweet & salty nut crunch, & apple cinnamon.
They also come in snack size w/110 cals & 7g protein.