Meat with gristley bits or massive bits of fat.
Offal - kidney, liver etc
Fishy fishy fish. I like some, but anything smelling fishy reminds of of being a kid. Also anyone tried cod liver oil? Not the capsules, but the stuff in the bottle, served by the spoonful. I'm mentally scarred by being forced to have some when I was a bairn.
Marmite is lovely though, it's just misunderstood.
Pickled garlic is nice too...