To lose that fat in a week, you have to burn off at least that amount in calories or eat that much less.

VOA: special.2010.06.08

But they believe there is a helpful change in the way the body processes energy in the monkeys that eat fewer calories.

VOA: special.2009.09.01

And those extra calories could help explain the rise in overweight children in the United States.

VOA: special.2010.03.17

To lose weight,you must use or burn off more calories than you take in.

VOA: special.2010.06.08

Half had McDonald's menus clearly showing how many calories were in each food.

VOA: special.2010.01.27

Physical activity burns calories - the energy stored in food.

VOA: special.2010.06.08