Maybe there could be a data format/protocol for reporting ingredients in products electronically so they could be easily analyzed. And make that open for the public (or companies) to view.
This gets at the issue of externalities and the general inadequacy of trying to track everything with one number ($).
There already is a basic data format & protocol: the ingredients are listed, in order. The problem here is that the ingredients were lies. Being more precise isn't going stop the lies.
This gets at the issue of externalities and the general inadequacy of trying to track everything with one number ($).