On Tuesday, Missouri becomes the first state in the country to have a law on the books that prohibits food makers to use the word "meat" to refer to anything other than animal flesh.
This takes aim at manufacturers of what has been dubbed fake or non-traditional meat.
Clean meat — also known as lab-grown meat — is made of cultured animal tissue cells, while plant-based meat is generally from ingredients such as soy, tempeh and seitan.
The state law forbids "misrepresenting a product as meat that is not derived from harvested production livestock or poultry." Violators may be fined $1,000 and imprisoned for a year.
A similar argument is unfolding on the federal level.