I see the greatest error women making is making damn sure they are served the same sized portion as THE MAN. In the name of feminism........ Ye - you're a foot shorter, you sit at your desk all day, he plays football 3 times a week and works a manual job, but yes - I'm damned if I'm going to eat less than him!!
Then you have the obsession with breakfast. Some people eat more for breakfast than I'd eat in a full day. That's not to mention the cereal bars, nuts, crackers, snacks, yoghurts etc. that they snack on. Then, not happy with just a sandwich for lunch, they'll have a sandwich, a banana, a packet of crisps and a can of coke.
3pm slump? A bar of chocolate
Dinner - fish and chips - about 600 calories in a small portion of chips. Then you've the fish in batter. Probably another 500 calories
Add onto that the odd glass bottle of wine a night, never exercising and it is very very easy to see how so many people are overweight.
As I said earlier in the thread, alcohol is my vice - so I'm no one to talk - but I try to exercise and eat remotely healthy chocolate aside when I can.
It's not easy to keep on top of it. But I personally feel better in my own skin when I'm slim and toned and strong.