A friend asked yesterday about the weight of food and how much your weigh. She wondered that if you ate a steak that weighed 12oz would you then put on 12oz in weight. She said that if you held it and got on the scales than you would but would eating it be the same, ( i appriciate that when buying a 12oz this weight is the pre-cooked weight, but this is if the post cooked weight was 12oz). And if you don't put on 12oz, why not??
I remember seeing an experiment on TV which was similar to this. They weighed the volunteer, had them eat a quarter pounder, then weighed them again. They didn't quite weigh an extra quarter of a pound, they actually weighed a little bit less than the extra quarter of a pound as some of the food had been burned off just in the processing of eating it.
You don't 'gain' 12 oz as most of it will be poo-ed back out. Its the energy that the steak produces that you don't use that gets converted eventually to fat.
Thanks Chaps,
Appriciate that you would get rid of a lot of it thought natural processes, but before that Morrigan, if you ate it and then got on the scales. - what about then?
As I said, yes you do! Less a bit that is burned off just by chewing and the energy used moving it down to the stomach. So in your scenario you might eat a 12oz steak but weigh maybe 11oz if you got straight on the scales.