Sorry, I meant that as a proxy for “families that have the purchasing power to buy premium goods.” My intuition is that there’s a weak inverse relationship between food processing and food price, with less processing corresponding to healthier gut biota. But you’re right that the $14 eggs themselves probably don’t matter.
"Processing" is meaningless and largely a naturalistic fallacy; your biome definitely cares about what you eat, but not if it's been sliced up first, which is a kind of processing.
I don’t disagree. You can substitute “processed” for the “ultra processed” category in the NOVA scheme[1]. I don’t think there’s anything wrong with chopping up your apples before eating them.