I gave raw food a try a while back for somewhere around forty five days. I bought a dehydrator, made a lot of my own foods, and bought the rest from the Whole Foods raw bar. In the end, I didn't stick with it. Here's why:
Despite all of those reasons, I always had it in the back of my head that I would become raw later. The dogma just sounds so good, and it's hard to argue against eating anything as raw and unprocessed as possible. Once I could afford to hire a chef or eat every meal out, I'd do it, I thought. But recently I learned something that changed my opinion. Barring any overturning evidence, I will never be primarily raw.
As it turns out, we've been eating cooked food for TWO MILLION YEARS. Two million! While we haven't had time to evolve to a refined grain diet, we have certainly evolved to eat cooked foods.
I'm sitting outside the Viking Museum in Oslo Norway. The museum is closed, but the little ice cream stand in the otherwise empty parking lot is still open. I'm on my third ice cream.
Eating ice cream in Norway is about as nonsensical as it gets. The ice creams are the crappy kind you find in freezer chests at truck stops. Norway is the most expensive country on the Big Mac index (and easily the most expensive country I've ever visited), so each ice cream costs around $4 US. It's not really warm here. Oh-- and I don't usually eat ice cream.
When I travel in new countries for short periods of time, say under a week, I allow myself to eat anything and everything. I do poorly with grey areas, so my diet is either 100% on or 100% off (although some things, like soda and margarine, are so offensive that I never eat them). It's usually 100% on, but I recognize that with two or three days in a country, my time may not be best spent scouting around for a decently healthy restaurant. Also, I'm pragmatic enough to know that a few days of eating crap food probably won't affect my long term health.