Just leave them alone. If they look really thin then they need to gain weight. But if they are not really thin and they are happy with themselves then leave them alone. Actully if they aren't the average weight or they are overweight that could be a problem. Most 11 year olds I know weigh about 100 pounds, other i know weight 89 and 77. But most of 11 year olds should be about 70-110 pounds.
You should check growth charts and your BMI.
'bout 58 pounds to 72 pounds
they should weigh about 75 pounds to 100 pounds, if they are above five feet. or at least thts how much i weigh and i still can afford to lose a few pounds!
About 80-90 pounds is about average. I am the same height as you but I'm 12. But I weigh 78 pounds.
if u are 15 you should weigh under 150 pounds if shorter the 5'0ft. then you should weigh under 140 pounds....
85 pounds
you should weigh about 30 to to 40 pounds. if you are 3'1 to 3'9 youu should weigh about that much. an average baby of toddler should weigh to about 20 to 40 pounds. over that, they are obese for a baby or a toddler.
An average nine year old should weigh maybe 72 pounds. My cousin Jenny is 10 and she weighs 57 pounds. But it depends on who it is.
The average weight of a girl that is 26 and is 5'7 should weigh around 152 pounds. Women in the Army should weigh around 143 pounds at the same height.
average weight 90lb.
The average weight is 65-70 pounds
at 5 feet 11 you should at least weigh 235 pounds that's if your into bodybuilding but for for average it would be 185 pounds