Trade groups slam DSHEA 2.0 proposal related to adverse events In this story, the Center for Science in the Public Interest and industry trade groups debate the merits of requiring manufacturers to report all adverse events associated with their dietary supplements. Also weighing in: a prominent Harvard Medical School professor who studies supplements, and an expert in adverse event management and regulatory compliance services. Editor’s note: This is the third article in a series on proposed reforms to DSHEA by several consumer groups in a recent letter to Congress. Some consumer advocacy groups want U.S. lawmakers to impose a new requirement that manufacturers of dietary supplements report to FDA all “adverse events” associated with their products.