Dietary supplements like those for weight loss and muscle building have become a multi-billiondollar industry, even as health experts say that in many cases their efficacy and safety is unproven. We take a close look at the rules governing the industry and what might change under the Trump Administration especially as Robert F. Kennedy Jr. is poised to be confirmed as Health and Human services secretary. Do you have a vitamin or dietary supplement question?

Guests:

Dr. S Bryn Austin, social epidemiologist and professor of Social and Behavioral Sciences, Harvard School of Public Health

Nicholas Florko, staff writer, The Atlantic

Marily Oppezzo, behavioral and learning scientist, registered dietician, Stanford Prevention Research Center