"Like Kennedy, Oz has a history of pushing dubious and debunked medical conspiracy theories. Oz made a number of false or unproven medical claims on his daytime TV show, "The Dr. Oz Show," which aired from 2009 to 2022, and he often promoted bogus weight loss products.

Research published in the British Medical Journal in 2014 found that less than half of the medical recommendations on Oz's TV show were supported by evidence.

Oz also shared misleading claims during the early days of the Covid-19 pandemic that chloroquine and hydroxychloroquine are effective treatments for the coronavirus " claims that Trump echoed at the time."