Firstly, no idea what a calorie works out to be so I'll be talking in Kilojoules.
Average intake for an adult male is 8000 Kilojoules per day (it's obviously a different measurement to calories but I'm not sure what that works out as)
That'll see you through the day just fine. The idea behind 8 small meals (although I've always been told it was 5) is that you eat the same amount of food, just more spread out. It's not 8 lunches or dinners. The way it was explained to me is this: Say you're going to eat chicken that day. your 5 small meals means that you eat a breast fillet for one meal, a thigh fillet for another, maybe the legs and wings for another etc... So that you've eaten one chicken, or the same amount that you would normally eat in your three meals. It doesn't mean you eat 5 chickens.
Finally, don't get caught up in the word "diet". There's a really simple formula which means you can literally eat what ever you like.
Eat less than you burn. Don't worry about individual elements of the food (sugar, carbs etc) look at the overall energy content. Make sure that your energy out exceeds your energy in. Easy
learned this in physical science this year
food calorie or Kilojoules are 1000 regular calories
so 1 food calorie is 1 kilojoule
According to this website: http://www.unitconve...conversion.html
1 Calorie is like 4 kilojoules