To add a bit of anecdata to the 'processed food' part of this thread...
I find that home made bread is much more satisfying and keeps me not-hungry for far longer than shop bought, however good.
We make pretty well all our own bread. Some years ago, I discovered that it is possible to part-bake and freeze pizza bases, which makes a huge difference to the practicality of having home made pizza. Before that, our standard Friday evening just-come-in-from-Tesco dinner was pizza. Tesco deep pan pizzas. Two, different flavours, half of each for each of us. Yes, that's a lot of pizza, but we would still end up with crisps later on! So, first week of new pizzas, I prepare and cook two, one each, as before. We get half way through and MrsC says, "do you think this would keep for tomorrow's lunch?" So the next week I make one pizza between us. It's still too much. So for the next batch of pizzas we use the same quantity of flour for six bases instead of four. Now part of this might be that our bread isn't as light and puffed up as commercial stuff, but I think there's more going on than just that.