Give him a break and substitute cracked out for hopped up on meth. I also would guess the medical dose of ritalin is anywhere near the recreational meth dosage, but I don't know.
What studies show that sugar doesn't cause hyperactivity in children?
Anecdotal evidence and extensive field work with my brother's kids has shown me otherwise. You feed them a ton of sugar at the carnival and they go wild and then crash a few hours later.