Natto - it's not that I dislike either it's taste of smell, it's that eating loads of soybean products isn't good for the testoterone level. One can get the possible bone protecting benefits of the phytoestrogen from just a little soy sauce. In a study done in Japan, it was found that Japanese men who ate soybean products regularly had suppressed testosterone levels. Personally I want a good immune system, my libido, more potential for building muscle, and increased concentration, all of which testosterone plays a part in.
Foods I don't like based on texture - Kazunoko, Salmon eggs, cheap cafetaria shinachiku (I do like the shinachiku put in an good Ramen dish)
Foods I don't like based on the image - unagi, anago, and sea cucumber.
Foods that positively taste wretched - uni.