I've always heard about eggs but have never had this happen with eggs. I don't like cabbage, broccoli, cauliflower or Brussel sprouts so go figure no experience there but I love cayenne pepper and consume it daily and sometimes this happens and these linger. It's some particular chemical in these foods that does it plus they feel warm coming out. Cayenne turds burn a little and with flaming hot cheetos puffs I consume daily I occasionally get a bright red turd too. Poblano peppers seem to cause this too but haven't had this with Chipotle, jalapeño or habanero peppers at all. Don't intend to touch ghost peppers or Carolina Reaper peppers since they're an unnatural hybrid and too dangerous to consume. Reaper pepper can kill a person.