Vegetables. Particularly stuff like tomatoes and beetroot. Literally make me gag. Can only stomach very few. People who try to force their views on others. Spoilers. When my manga takes a break. People who boast and laud their accomplishments over others. Liars, hypocrites, backstabbers etc. you get the picture. That everything that tastes good is bad for you and everything that tastes bad is good for you.