Yeah, they do that while drinking and eating.

Had a 1400kcal meal recently - over 2000kcal after drinks, it didn’t even feel overly filling. Wtf are they putting in this to be so many kcal and not fill you?

I can easily see that leading to obesity if you eat it on any vaguely common frequency. With how many people I know that look at me strangely because I don’t eat a takeaway or at a pub at least once a week, I get the impression many people are eating that an awful lot.