Let’s turn yesterday’s QotD around:
What food did you love as a kid that you don’t like anymore?
I remember the first candy bar I had as a kid was a Three Musketeers, and for a long time I loved them. Now I can’t eat one. The same is true of chewing gum; I loved Wrigley’s Spearmint. Now I won’t even buy gum. As far as real food, I can’t think of anything that’s completely lost its appeal… more’s the pity, I suppose.