The episode is about an investigation into 200 of TikTok's most popular health videos, uncovering a troubling trend where misinformation is widespread and thriving, particularly concerning alleged miracle treatments for cancer and autism
Charlsie Agro
Host
Tom Harrington
Host
David Commons
Investigative journalist
Wendy Mesley
Host
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"Investigating Dr. TikTok" is episode 5 of Marketplace season 53. It aired on October 24, 2025.