Mehmet Oz

Together with Jay Bhattacharya and Marty Makary, Mehmet Oz presented a memorandum that led the CDC to reorganise the childhood vaccination schedule and move several vaccines previously recommended for all children into "high-risk" or "shared decision-making" categories. The American Academy of Pediatrics maintained its universal recommendations and criticised the departure from the usual scientific process.

State of the evidence

Documented

Attribution

Directly implicated

During his nomination to lead the Centers for Medicare & Medicaid Services, Oz's financial disclosures revealed holdings in several healthcare and pharmaceutical companies, as well as advisory positions. Senator Elizabeth Warren called for complete divestment of these interests because of CMS's role in reimbursement and regulation.

State of the evidence

Documented

Attribution

Directly implicated

The 2022 Senate campaign revived allegations concerning animal experiments conducted in the cardiac research laboratory supervised by Oz at Columbia. His campaign did not dispute that a large number of dogs had been euthanised in this research. Documents and testimony described problems with sedation, procedures and monitoring in certain cases.

State of the evidence

Documented

Oz's Republican Senate candidacy in Pennsylvania sparked controversy over his local ties: he had lived in New Jersey for more than thirty years before registering and moving to Pennsylvania in late 2020, shortly before his candidacy, while continuing to use his New Jersey property.

State of the evidence

Documented

Attribution

Directly implicated

Ten doctors wrote to Columbia requesting Oz's removal from the faculty, accusing him of disregard for evidence-based medicine, promotion of "quack treatments" and conflicts of interest. The letter also targeted his public positions on genetically modified organisms.

State of the evidence

Documented

Attribution

Directly implicated

The Dr. Oz Show presented green coffee bean extract as a spectacular weight-loss solution. The FTC subsequently pursued vendors who used footage from the programme and concluded that a key study used to promote the product was seriously flawed; the manufacturer paid $3.5 million in a settlement.

State of the evidence

Documented

Attribution

Personally implicated

Oz appeared before a Senate subcommittee examining misleading advertising for weight-loss products. Senator Claire McCaskill criticised his use of terms such as "miracle" and "magic" for products lacking robust evidence, arguing that fraudsters could exploit his medical credibility.

State of the evidence

Documented

Attribution

Protagonist is a witness

An analysis published in the BMJ and widely reported in the press examined recommendations made on episodes of The Dr. Oz Show and concluded that only approximately 46% were supported by evidence meeting the researchers' criteria, with a significant proportion lacking evidence or contradicted by available data.

Attribution

Directly implicated

A study with Mehmet Oz as lead author was due to be presented at the American Association for Thoracic Surgery in 2003. Officials challenged its methodological robustness and the conclusions drawn from a small sample; the work was withdrawn and Oz was barred for two years from presenting at the conference and, according to testimony obtained, publishing in the associated journal.

State of the evidence

Documented