Sizemilk, I swear that vat of Marmite looks indistinguishable from road surface tar. Yum. Not.
I guess it's what you get used to when you're growing up. There is a JW connection - although tenuous:
When I was growing up, my JW mother would always opt for a non-religiously aligned food product, so Vegemite always won over Marmite, a Sanitarium product which at least in the 1960s was Seventh-Day Adventist owned and operated. My mother was not a fool, however: as she got older and agreed with me that all was not as was claimed by the Watchtower, she was known to buy Weet-Bix when it was on special. But old habits die hard: When it wasn't on special, we "enjoyed" the British non-religious equivalent: Weet-A-Bix (I think that's its brand name?).