According to Drugs.com, 12- to 14-year-olds should consume approximately 1 gram of protein per kilogram of body weight each day. Girls aged 15 to 18 need slightly less protein, or 0.9 grams per kilogram of body weight. Find out how many kg your teenager weighs by dividing her weight in pounds by 2.2. For example, if your 13-year-old weighs 100 pounds, she weighs 45.5 kilograms, and should consume about 45 grams of protein each day. The Centers for Disease Control recommends that 13-year-olds consume about 34 grams of protein each day, and 14- to 18-year-olds, about 46 grams.
1g/kg
8.0 grams per kilogram of bodyweight
Generally, depending on how much the boy weighs and how much he exercises, he should have around 19 grams of protein a day. Once he gets to be around 8 1/2 to 9 years old he should be eating about 34 grams of protein.
An eleven year old boy should have 2,300 mg a day
You should be using protein at lest 5 pounds of protein 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".
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70lbs. About.
The best way for a 12 year old boy to grow is to eat a well balanced diet with lots of protein and vegetables, and to exercise regularly.
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