Researchers reviewed the evidence for recommendations made on 80 episodes each of The Dr. Oz Show and The Doctors. They were able to
Additionally, for The Dr. Oz Show, evidence supported 46%, contradicted 15%, and was not found for 39% of the total recommendations. For The Doctors recommendations, evidence supported 63%, contradicted 14%, and was not found for 24%. Believable or somewhat believable evidence supported 33% of the recommendations on The Dr. Oz Show and 53% on The Doctors.
Source: British Medical Journal, December 17, 2014