Q: my daughter is 12yrs old nearly 13 and 5'4" she is very tall and she thinks she needs to lose weight.her best friend is the same height as her but skinnier and that is because of her fast Metabolism she weighs 55 kg and she looks like a normal kid to me.she is doing exercise in her bed room every few nights but she does exercise at school too . what is the normal weight for a 12 nearly 13 yr old is she normal weight?

A: An average 13-year old girl is 5 foot 2 inches and weighs about 46kgs. Being 5 foot 4, your daughter is taller than 75% of her peers and at 55 kgs she is heavier than about 80% of them. In other words, her weight is perfectly appropriate for her height -- she just happens to develop faster than average.