Acrylamide

It's a running gag in our house that fried snacks from Asia at places like 人's Market have Prop 65 warning stickers because of a high level of Acrylamide.

The thing is that it is not a strange technological ingredient but instead a byproduct of ordinary cooking techniques as well as the production of ultra-processed foods. It will never go away but you can set limits for it and you can modify methods of production to produce less.