Depends on your intake at the time.
there is no way you should lose that much at your age. At maximum you should lose 1 pound a week. Walk or run for a little while each day, eat about 200 calories less a day
First of all why should an 11 year old need to lose 20 pounds?Get outside and get motivated. Walk, run and play. Substitute wheat bread for white, drink plenty of water to flush your body.Limit the sugar in your diet.
It take 3500 calories to lose 1 pound. On average running a mile will minus you about 100 calories or so.
Drink as much water as you can and walk/run.
don't stop moving. Honestly, you shouldn't need to lose 40 pounds, but dance, sing, run, walk, play MOVE basically.
You should walk at a safe pace sometimes depends on you. But i usually walk at a brisk rather fast pace, and i have lost 8 pounds.
1 hour power walk 135 pounds how many calories burned?
Well if you are ten and over 100 pounds you should start eating healthy, if your parents will allow it walk around your neighborhood often, and lay off the ice cream
You might not be able to lose that much in 1 week. But you can lose some of it. Skip desserts, eat healthy food in place of junky, and EXERCISE! Take walks, try to go to a gym if your old enough! I suggest buying a step counter when you walk. You should walk atleast 5000 steps per day. Good Luck!
Walk to work. If you can't walk because it is too far, park at a shopping center nearby. One mile takes 15-20 minutes to walk. But the pounds will fall off without trying. Quickly.
Watch your diet, and as soon as your home from work, go on a walk, say hi to friends, and maybe meet some people.