Well chocolate doesn't actually have that much to it (a regular chocolate bar is only like 250 calories) so it'd have to be more than two bars a day. The main

Well chocolate doesn't actually have that much to it (a regular chocolate bar is only like 250 calories) so it'd have to be more than two bars a day. The main problem (as I'm told) with eating nothing but pure calorie sources supplemented with...uh, supplements is that the cost of the supplements is very high. Remember you need protein, carbs(I guess these wouldn't be in short supply on the candy bar diet) and fats plus micronutrients too or your body will start to break and those supplements aren't cheap. I do know people that subsist mostly on protein shakes, rice and various supplement pills when they are doing hard cuts for body building competitions and while it's stressful on your body you aren't going to die from it.