Labeling. If it says 100% cotton, it better be. If it says no peanuts [to avoid nut allergies], it better be.
If it says 70% chocolate, or Dutch process, or water process ... or that the ciffee beans are from Columbia. Nothing wrong with accurate labeling.
Where does the power to enforce that reside, Constitutionally? At the state level? Or FedGov?
/johnny