Pascal answered Sunday November 23 2008, 1:09 pm: You'll lose weight if you burn more calories than you eat in a day. Your body already burns anywhere between 1500 - 2000 calories just doing your normal daily activities and such things like breathing and keeping your heart beating. This number depends on your age, weight, metabolism, and body composition, so that's a rough estimate above.
You'll probably lose weight if you run on the treadmill because you'll be expending calories. As long as you eat the recommended calorie amount and healthily, you should have no trouble losing weight.
The amount of time you should run depends on how in shape you are right now. I would recommend 30 minutes/day, 4 days/week. The off days allow your body time to recover.
If you also cut back your calorie consumption to around 1500 calories/day, you would probably lose 1-2 pounds per week doing this.
Hope this helps!
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