Usually national associations get together, discuss issues, and come to some sort of agreement or recommendation that is then followed by most actors.

Litigation does of course occur but it's not the main mechanism.

Some countries have regulatory bodies that are empowered to effectively regulate industry.

Parent is not correct. Litigation certainly is a thing, but it is less prevalent than in the US. Perhaps the food chain will take the loss, be covered by insurance, and the insurance company will sue.