I thought they sold fruit and vegetables at the farmers market, not shoo-fly pie and sticky buns? Perhaps I should quote to you from the article I was reading this morning about where most GMO foods are derived from corn, soy, or sugar beets. Anything with corn syrup, soy flour or milk, or sugar, is suspect. That includes meat, fish, chicken, etc., which are fed GMO-treated feed.
I don't have a quarrel with genetically modified foods per se. Hybridization of plants has yielded some vast improvements. But things have gotten out of control. Factory farmed plants are treated so they are immune to certain herbicides. That in itself is neither bad nor good, but then planes fly over the crops dousing them with herbicides to kill the weeds. So the plant grows up in a wash of chemicals.