I'm the pickiest eater I've come across, and I absolutely despise a lot of foods. So much so that when I was bored one day I actually created a 3 page long list of foods I hate because people asked me so often (which I still have on Google Docs from like high school lmao).
Some of the ones that seem to make people most appalled with me though include:
Pizza, popcorn, chocolate, lasagna, avocados, pork products other than bacon, any and all seafood, enchiladas, all veggies other than potatoes and corn if you could count those as real vegetables, frosting (ironic as a cake decorator), gummy candy, marshmallows, bananas, jello, etc.