We did a presentation about weight a couple of weeks ago, if I remember the stats correctly:
If you consume 500calories per day more than you are burning, over the course of the week this amounts to 1lb in weight gain.
Similarly to lose 1lb, you need to burn 500 calories more per day than you are consuming.
If that makes sense?
Simply put, I like what Bondy said about viewing food as being fuel now; so makes choices based on the amount of energy he is going to burn.
And for people who are serious about losing weight, it's important to make sustainable lifestyle changes. i.e. removing things from your diet that you know you can survive without from one day to the next. And also recognising that occasional treats are acceptable.
I've lost 2lb since my last wii-fit weigh-in