It's a case of using your common sense. Why do you need to buy snacks indinana? Remember when we were young, we didn't walk around all day eating and drinking, we didn't need to, it's just a habit. All this talk about keeping hydrated, just a gimmick, I bet the likes of Perrier are rubbing their hands in glee at our gullibility. Breakfast cereals? Don't buy them, we only had a small selection years ago, we are just used to shoving sugary things in our face now. If you watch any newsreel before the 70's there are very few fat people around, in fact if you look at people that we thought were grossly overweight, like Hattie Jacques you'll be amazed at how slim she looks in comparison to many of the lardies, including young girls, around now.