I always thought those food type diets were nonsense, but I read something the other day that said that people who have a sweet tooth eat more fruit than those who like fat food, and those who like fruit eat more sweets as well - so it may have something going for it.

I agree - i just love carbs, any carbs, even plain white bread, but i'm not really turned on by meat and fatty stuff.

So does that affect things like how much weight you gain or lose?

There are a lot of people who believe that, but I've never seen any clear evidence to support it - I think where it's relevant is that it helps to know the types of foods you crave, what will cause you to overeat etc.

I don't know if it's food types, but we do seem to have types of food we prefer, don't we?

so does that mean there are certian foods we should or shouldn't eat?  how do we know?