Luckily I seemed to grow out of most of my food dislikes, but I still have a couple that might meet the criteria here.
sweet potatoes: I try to keep an open mind, I especially hate the American Thanksgiving tradition of adding copious amounts of butter and brown sugar, gag...
beef liver and overcooked venison (which oddly takes on the taste and texture of gnarly beef liver!)
raw bananas: this one may not be my 'fault' as I might have a super mild intolerance, they make my mouth feel weird, slightly itchy... I love making and eating banana bread though!
strawberry preserves: I think it is the texture, I just find it super gross, I love raw strawberries and sometimes make strawberry/rhubarb crunch...
IPAs: I keep waiting for the contest/trend to make beer more bitter and as undrinkable as possible to be over, but it may never be... I get very discouraged whenever I walk into a brewpub and 90% of taps are all nasty IPA, just stop it and brew some good beer.
I find that it is often texture rather than taste that turns me off from food now-a-days, my wife teases me because I'm always adding something crunchy to smooth foods, I guess I've turned into Cap. Crunch.