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An eleven year old boy should have 2,300 mg a day
If the child plays football, baseball, basketball, or any other sport for that matter he should eat more carbs during this time to help his muscles. After the sporting season ends he should eat less carbs because his muscles are not being used that much, therefore the carbs will go to fat.
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".
you should know.
279 - 280
140
70lbs. About.
3,000
safely about 25meters
9st
1 hour
1 hour