This is something that concerns me too - when I allow myself to dwell on it.
I mean, we make the best decisions we are able to - cutting carbs, researching, eliminating certain foods if we identify them as causing problems, and some of us need to go to pretty extreme levels to achieve feeling 'well' don't we? I ended up carnivore because the non-carnivore stuff is simply too problematic in terms of inflammation and gut issues. To be honest, my blood glucose was under control long before I went carni. Other factors were the decider.
So what happens if, for some reason (and it might be a different reason for any of us) the carni option is removed?
What is left?
I really feel for you
@wiflib
Until you get a proper diagnosis, and some clear answers, you won't feel confident in your food choices - even if everything has pointed to carnivore being the best option til now.
Oh, and as for the omelette you had - a lot of commercial caterers are now using a powdered egg instead of real eggs. Just add water for the right consistency. They just mix it up and add whatever they like. Milk powder, etc is easier than real milk, and so on. Some places even buy in pre-made frozen omelettes, just defrost, reheat and serve. Less work for the kitchen staff that way...