About 1900 calories, but at the age of 12 you can get what you want.
No.
No you can not.
6'4"
what size of what??
Yes.
carbs and sugars
Yes all the time you get use to it
no
Get him into counseling and anger management classes.
French Fries
if you have hit puberty then yes if not then no but I would say yes.
If it's a 5'3 12 year old boy it's about 110