In banning higher dose vitamins, regulators ignore benefits and exaggerate risks. Action Alert! For a while now, we’ve been telling you about the threats posed by mandatory product listing (MPL) for supplements, a policy championed by Senator Dick Durbin (D-IL). We fear that, if MPL gets passed, the US will start restricting vitamin doses as has been going on in Europe for some time now. These restrictions are based on unscientific assessments of the risk posed by supplement doses. Read more.