It’s not shwarma at most of them mate, it’s highly processed doner, and the reason most of us would only touch them after 15 pints is we know what’s in it, or rather we know that we don’t know what’s in it. They’re extremely high fat and high salt, and there’s a multi-decade history of the manufacturers being busted for shenanigans.

Jellied eels? I don’t think most British people have ever eaten those except maybe on a dare.

I’m going to be charitable and assume you’ve only ever been to a small part of the East End of London, where you can get jellied eels (not the case in much of the country) and where there is likely a diverse enough community that actual decent shwarma exists.

Because if you’re eating doner kebabs regularly, from whatever vendor you come across in the UK, all I can say is you might want to check your heart health.