I know my more recent posts were about good food (burgers, pizza, fried chicken, steak sandwiches) but there are definitely foods we absolutely hate. Let's take a trip down memory lane (that's a road often-walked by me) and revisit your youth: as a kid, you're sitting at dinner, and the minutes keep on ticking and you're the last one at the table. Why? Because a noxious helping of "food" that you utterly detest is still sitting on your plate, and you don't dare introduce it to your digestive system for fear of it being shot back out. Now these could be foods that you now can stomach (or God forbid, have come to like!) or these can be foods you never ate again.
Parents seemed to find it insulting that kids didn't want to eat these "foods", but I still personally believe that it's inhumane to force them to eat foods that their digestive systems won't tolerate. There is always another way to get the same nutrients to be ingested. If your kid ralfs after scoffing it, stop feeding it to them!
Ahem.. back to the topic. What foods were you incapable of holding down back then, and perhaps still hate?