Yes. Diet supplements do not work. Dr. Oz, and a number of other doctors, are sucking people in to believe that there is a magic pill to solve our woes. Truth is, exercise and diet are the keys, but many are more prepared to spend time watching Dr. Oz, than changing their habits.
Dietary supplements are unregulated. Two agencies: FTC and FDA, these US agencies go after scams, but there is little authority until people start getting sick.
John Oliver outlines what, exactly is problematic about Dr. Oz and the nutrition supplement industry. Then he invites George R.R. Martin, Steve Buscemi, the Black and Gold Marching Elite, and some fake real housewives on the show to illustrate how to pander to an audience without hurting anyone.