You might have picked M&M peanuts randomly, but sugar is a big part of the creeping force of civilization, and hard to fathom its impact on you until you take a break from it for several months.
It made me discover how much stuff has added sugar. Things that I would assume would be fine to eat all had added sugar. Most bread was a write off, practically every sauce, and more or less every packaged food contained sugar.
To be honest, the sugar cravings weren't hard to work through, I've never really eaten much sugar, but the sheer amount of food that I wasn't able to eat because of added sugar was staggering.
At least drinking was easy, I could still drink most wines, beers, and spirits.
I depends on what is "edible stuff" to you. Carrots, meat, cabage, fish, etc. have no added sugar in them. Why not simply cook your food, like most people in the world do?
From what I read here and there, Americans have completely lost foot with food, for them having a meal means to take some boxed thing out of the fridge and put it in the microwave owen for 10 mn. This is /not/ a normal meal, it's a lazy way to get one's belly filled. The normal meal for normal people is prepared at home from raw ingredients and some spices.
The problem is that I ended up having to make practically everything from scratch. I couldn't use pasta sauces, since they all have added sugar. Most bread has added sugar as well, so no bread for me.