well i will say go to the DR and ask they will tell you
An eleven year old boy should have 2,300 mg a day
There really is no specific limit to how much a fourteen year old boy should weigh. It depends on how tall you are, because if you were 5' 9", you should weigh more than a fourteen year old boy who is 5' 2".
279 - 280
70lbs. About.
you should know.
140
9st
1 hour
120-140
safely about 25meters
1 hour
3,000