It's just under five kilograms of dark chocolate (70-85% cacao), apparently. Or about six tins of Quality Street. :D
What you missed is the time frame. You need to actually eat more than this amount because the human metabolism breaks down the theobromine.
I think the calculations I did was that you needed to eat more than 100Grams of 70% Cacao chocolate/kilo of body weight in under 1 hour for it to be toxic.
Biting the hand that feeds IT
