http://www.cdc.gov/nccdphp/dnpa/nutrition/nutrition_for_everyone/quick_tips/tipping_scales.htm
If your goal is to lose weight or maintain your current healthy weight, here are some tips to help you achieve that goal. Remember, to maintain weight, you must balance calorie intake with calories burned through physical activity. If you eat more than you expend, you gain weight. If you eat less (reduce calories) than you expend, you lose weight!