I'm not really an expert on this, I barely understand it well enough to be happy about what I am doing, but what i have done is to change the ratio of fresh or whole foods to processed foods and got to know precisely how much fat is in the things I was eating. I have also cut down on sugar and highly processed white foods as far as I can as this is the type of simple high GI carbohydrate that needs to be either immediately used or ends up on my bum.
When choosing foods (say canned foods or yoghurt etc) I'll pick based on calories because I think that already has all the fat and carbohydrate accounted for and gives me a standard to compare by. Not quite sure what the diff is between calories and kilojules. I may have everything ass about, but I'm sure someone will correct me if I have. And I try to buy as close to natural as possible (eg fat free natural yoghurt with no flavours etc)
35kg lost. (November 2005 - October 2006)
15kg gained again (as at October 2010).
Back to the drawing board - Let's do this thing!
"You can't change the winds, but you can change the sails"
"Reach out and take control of what lands in your lap"