Earlier, a group of doctors sent a letter to Columbia University, asking for Turkish-American cardiothoracic surgeon and television personality Mehmet Oz's dismissal from the medical school's faculty. According to medical professionals, some of the television host's advices lack scientific backing. Now, Oz has defended himself against criticism.

In a recent statement released through a representative of The Dr. Oz Show, Oz said, "I bring public information that will help them on their path to be their best selves. We provide multiple points of view, including mine, which is offered without conflict of interest. That doesn't sit well with certain agendas which distort the facts".

According to the New York Daily News, in the letter to Columbia University, a doctor has called Oz a fake and charlatan. Henry Miller of Stanford University said that the Columbia University must be feeling great because of its best- known doctor in the country.

Among the issues raised by the doctors with Oz is the television personality's apparent opposition to genetically modified foods (GMOs). In his statement, Oz said that he did not claim that GMO foods are dangerous for humans. According to him, he believes that it is important to label them as they are labeled in other countries around the globe. He also said that he has decided to address this issue on the show next week.

In addition to hosting a television show, Oz serves as vice chairman of Columbia's department of surgery. Previously, Oz was known in the medical community as a respected cardiothoracic surgeon.

Doug Levy, chief communications officer for Columbia University Medical Center, said that the university has planned no action against Oz. Levy stated that the university does not regulate its faculty engagement in public discourse.

According to some medical professionals, Oz's endorsement of weight-loss products lack scientific proof of their effectiveness.