I will normally eat just about anything (though, left to my own devices, I start falling into a specific eating routine of my own which most would probably consider quirky at best), but I am very picky about textures. I can't stand gooey, thick foods. I think I was overfed with thick soups made with minced meat as a child, and with cottage cheese mixed with sour cream until it was a semi-liquid mass, - I was probably force-fed these too often, - and now the very sight of anything like these foods makes me gag, not to mention trying to put a spoonful into my mouth. The taste may actually be great, it just doesn't matter. Especially if the food looks and feels slimy, it is an absolute "no".
Meat jelly was another type of food which I couldn't stand as a child and young teen, and which would make me gag when I tried to eat it. It took some time before I got used to it and started to appreciate its actual taste. Still, even now, I have to sort of close my eyes to its look and texture, and melt each spoonful in my mouth, savoring the bits of meat and broth flavor and telling myself over and over again: "this is good....this is good....this is good...". Basically, I still have to make myself eat it.
Strangely enough, ordinary sweet jelly has always been fine, whatever its texture/look. I also like its brilliant colors and the way light will reflect and play in it.