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Fortune
Fortune
Beth Greenfield

Dr. Oz says probiotic supplements have wide-ranging health benefits. Here's what science says

Dr. Mehmet Oz sitting at Senate confirmation hearing behind a sign with his name on it (Credit: Anna Moneymaker/Getty Images)

Our bodies—and guts, specifically—depend on a balance of bacteria to “maintain healthy blood sugar and cholesterol levels,” but “you gotta feed the bacteria.” So said Dr. Mehmet Oz—heart surgeon turned daytime TV host, ardent RFK Jr. supporter, believer in disproven COVID treatment hydroxychloroquine, and now possible head of Medicaid and Medicare for the Trump administration—who began his Senate confirmation process on Friday. 

To aid in that gut-balancing process, Oz has pushed the benefits of both prebiotics and probiotics, including in his role as global advisor for the iHerb brand of supplements. 

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