Food during touring?
I take almost the opposite approach - I eat almost all natural foods when I'm touring. I prefer rice + milk + sultanas + sugar for breakfast so I boil the rice the night before and it slow cooks overnight. The rest of the day I eat fresh fruit and veges when I can, bread and cheese or peanut better etc. I eat a bit of road kill when I can, and buy hot chips if they smell good enough. For dinner I eat a lot of pasta and noodles, usually the fast cook sort (not very natural :) I do self-contained touring, and generally free camp.

My diet is determined largely by listening to my body, which amounts to "eat what I feel like eating" or "eat what smells good". And lots of carbs. In hot weather this can mean hot, salty chips every day for the salt and calories, but also usually means a lot of whatever seasonal fruit and vegetables are available.

I ride a recumbent when touring, and the slightly odd bike generates a lot of interest from people when I stop, so I get invited to eat with locals a lot as well. So often my evening meal is whatever I'm offered.

When I can't get fresh fruit and veges I eat a fair bit of dried fruit, especially dried bananas. Also dried vegetables. In the dry parts of Australia food is trucked in, and is generally service station/roadhouse/corner shop type food (and expensive too). The local water is often heavily mineralized, usually to the point where long term consumption is not recommended. So I get dried camping type food posted to me and buy as much bottled water as I feel I can afford (usually 20%-40% of my consumption).