Before Dr. Mehmet Oz entered the world of politics, he was known for speaking about health topics on TV, including his own show and as a guest on others. But Oz, who has appeared on the TODAY show ...

We evaluated his claims about probiotics, weight loss, heart health and more. By Dani Blum Nina Agrawal and Saurabh Datar Dr. Mehmet Oz built his television empire on the simple promise that you ...

Advertising Dr. Marion Nestle, an emeritus professor of nutrition, food studies and public health at New York University, said that some of Oz’s talking points, like those about weight loss and ...