Sorry sweetie, but if I could use processed sugar as an excuse for why MY son was such a monster, I would...but he didn't get any of that, he was never out of my sight until age of 3 and he was a total terror! He ate organic and fresh EVERYTHING...no cows milk...basically a vegetarian. I learned that once I took certain cartoons out of the mix,(ie...power rangers, teenage mutant ninja turtles and the like) my son calmed down immensely! (and yes...boys DO go through a hitting stage)
So...if you feel that processed sugar is turning your angel to demon...don't give it to him! Do an experiment for a few days...but be prepared for others to not follow your dietary restrictions (my son had a milk protein allergy, unless I told people he would die if they gave it to him...they thought I was being "one of those moms" gave it to him anyway and then wondered why he was so sick and acting like a maniac!)
My son who is now ten is ADHD, caffeine calms him down, try it, we learned early on that if he was too wound up, a little caffeine would calm him down almost instanty, but that is also normal for children who are ADHD, even at the age of two. Hope this helps!