Helena, you are right, most of the animal is being used. However, the problem is how it is used. The problem is the huge efforts that the market makes to re-process relatively unpopular foodstuffs such as offal to render them palatable to the mass market, for example producing meat slurry out of them to shape into cheap burgers and chicken nuggets. This doesn't actually appear on food industry labels, or if it does, it is labelled using euphemisms (not having a packet of cheap burgers to hand, I'm sorry I can't quote you any actual examples) Palatability, texture etc is also improved by adding ingredients such as salt and sugar, very few of which have any intrinsic food value, and which contribute to rising obesity levels. I'm afraid I don't have your trust in the market to act in its customers' best interests!