I don't feel guilt about eating food unless I count the way it gets produced- treating farm and factory workers badly, battery animal farming, shit like that. I haven't eaten meat for decades, but I don't have the time or money to vet everything else I eat. Wouldn't eat at Chick Fil'A even if I ate meat though.

I avoid foods the growers or factory workers actually ask consumers to boycott, though, if I hear about anything. Was sad to lose Annie's mac and cheese and frozen meals for union-busting bullshit.

I guess hot cheetos, takis, and fruit punch gatorade come closest on the "no redeeming nutritional value beyond calories" industrially produced garbage for me. I keep an emergency bottle of gatorade or two around for post-food poisoning or other pukey misery rehydration, and try not to buy crunchy hot cheetos or takis because I can make a family sized bag disappear in hours.