First, ask your parents and your doctor whether you SHOULD be losing weight. If so, they should be able to provide you with a safe way in which to lose weight.
Yes, anybody can. The question is if it's healthy for that 11 year old to lose weight.
An 11 year old should not be trying to lose weight unless it's for medical reasons and a doctor is following the weightloss
walk and well that's it you at least lose calories
I say sports
If you are 11 years old, then exercise for the enjoyment of it. You will look and feel better, even if you do not lose any weight. Do not try to lose weight unless your doctor tells you to do so. You can harm your health.
A sensible exercise regime and diet
If you are fairly strong and weigh from 100-110 pounds your fine and don't lose weight, if you weigh more, lose weight. If you are fairly weak and weigh from 70-90 pounds your fine don't lose weight, if you weight less lose weight. If you weight 90-100 pounds weak or strong your PERFECT don't EVER think your over weight. For an 11 year old girl who hasn't had puberty then you will soon and when you do then take my advice
A little exercise would help
Eat fruits and workout
The average weight for an 11 year old girl is from 80-90 pounds. Yes she does need to loose some weight! Maybe a stone.
yes you need to lose a lot of weight
A eleven year old child can go on a diet to lose weight. The child can also do some light exercises like walking and swimming to lose weight.