At least in EU and its member states, there is a lot of research and testing of actual foods ongoing. So no matter what the farmers say, the actual testing of t

At least in EU and its member states, there is a lot of research and testing of actual foods ongoing. So no matter what the farmers say, the actual testing of the foodstuff is an independent method of verification. For example one can find this for countries https://efsa.onlinelibrary.wiley.com/doi/pdf/10.2903/sp.efsa.2021.EN-6487 https://efsa.onlinelibrary.wiley.com/doi/pdf/10.2903/sp.efsa... I failed to find simple numbers quickly though, but for example for my country, it seems domestic is clean, EU produce okayish and non-EU food suspect.