Bread i do in a bread maker with bread flour i get at our local IGA. Flour, water and yeast and the machine does the rest. Improver, which is in most bread has Soy in it, so bread without imporover sometimes isn't as soft and fluffy but it is pretty good if you ask me. Most bread mixes have improver in them, but you can find some without.

Yoghurt, i use a goats milk as a starter, put a couple of table spoons in my easiyo, add milk. Then put the easiyo together with hot water and leave it overnight. Then i add fruit and whatever else we feel like. If you use the easiyo sachets the yoghurt is generally thicker, sometimes mine isn't as thick. I have had a few batches fail, i think because my utensils weren't as clean as they should be. But it is pretty easy. If you do a search there is lots of info on using an easiyo and recipes. Lots of people add powdered milk to make it thicker.

Plain Jalna yoghurt has no nasties if you don't feel like making your own. But it is pretty $$$, making it is so much cheaper.