You know, it's for these reasons I hardly eat any packaged foods. I've become positively paranoid. In the past if I was on the road and modestly hungry I would buy potato chips or a candy bar. Now I fear the unknown and simply do without, or perhaps I would buy a piece of fruit. True, a single bag of chips will not kill me. But why do I want to poison myself slowly? Same goes for eating out in restaurants. I find myself being incredibly selective on choosing the restaurant. Friends find this behavior to marginally tolerable, as if I am some amiable yet harmless eccentric.
Yet as a side benefit I keep quite slim without really trying!