Opinion

DR MARC SIEGEL: What Dr Oz says about Trump’s diet may surprise his harshest critics

CMS administrator Dr Oz shares insights on the president's health, humor and eating habits in a new interview

By Dr. Marc Siegel Fox News

Published April 22, 2026 9:00am EDT

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I have known cardiologist Dr. Mehmet Oz, administrator of the Centers for Medicare & Medicaid Services, for many years. I’ve interviewed him multiple times on my show, "Doctor Radio Reports" on SiriusXM, and have also spent time around the dinner table with him and his family.

Many in the cardiac and cardiac surgery fields in New York have told me that he is one of the best heart surgeons in history. I have always found him to be highly analytical and to possess a good sense of humor.

Dr. Oz spends a lot of time with President Donald Trump these days as they travel to and attend events together. He told me recently on my show that he is struck by how clever and funny the president is and how he doesn’t actually have a bad diet. 

Here are five things that struck me about the president’s diet following our recent conversation.

On Diet Coke

Last week, the news media excoriated President Trump for supposedly saying that Diet Coke kills cancer cells. It is no secret that the president drinks a lot of diet soda, but it is less well known what he thinks about its properties.

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Here’s what Dr. Oz said to me in an interview for my show, "Doctor Radio Reports," on SiriusXM. "We sometimes travel together, and so I was joking with his son about something his son........

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