Dietary supplements and protein powders aren't regulated the same way drugs are — here's what experts say to watch out for

Emily Hemendinger is an assistant professor of psychiatry at University of Colorado Anschutz Medical Campus and Katie Suleta is a Ph.D. candidate in medicine and health at George Washington University.

Dietary supplements are a big business. The industry made almost $39 billion in revenue in 2022, and with very little regulation and oversight, it stands to keep growing.