Easy Peesy Welshbear, the last time a bear got hyper it killed my wife
Then again, not such a bad idea
Christo has probably nailed it (food colourings) but do you have salt on your fries?
Shouldn't be the protein as BM&F has less (31g) than maximum daily limit (50g).
The carb and fat content is very high as well (116g and 55g respectively). You can try eating something high in food colouring and low in all of protein, carbs and fat (is there any?). By a process of elimintaion you can get to the probable answer.
Bon Appetit! (if you can use that expression when having Mickey D