It's not because of the taste, or the shape in themselfs. when I saw a pizza months ago for example, my mind associated this directly to children with big predators pigs , and then it was stuck in my head. Impossible to eat something who were related to these disgusting stuff. My body didn't feel well, complicated to explain, but I know its just their codes. But still. Where I live, three years ago an ex famous blogger of tv reality show was in a big scandal with two friends of him, they were accused to p***philia, his friends was in their 50's, and there were proofs that this man had sex with minors between 14 and 17 years old, he was like a sugar daddy. His pets like they called them on the proofs, were forced to call him babybel. It was his nickname. The second monster was known by the nickname Babar.
It was disgusting af, it doesn't change the fact that babybel has the same taste, but if you are sensitive like me, it will disgust you when you are going to see this "cheese" again, because your brain will associate this with horrendous things you have heard or read. It's pretty boring but that's my case.
Babar is still an anime for little children, but when you know some pigs use this as a nickname over 50's and showing young teen boys in snapchat doing disgusting stuff... well it ruined your vision