Oz said in a statement Friday that his show provides "multiple points of view" including his own.
He added that his own views are offered "without conflict of interest."
A group of 10 doctors sent a letter to Columbia University this week urging the university to remove Oz from its faculty. They accused Oz of an "egregious lack of integrity."
The lead author was Dr. Henry Miller, a senior research fellow at Stanford's Hoover Institution.
A Columbia spokesman said the school is "committed to the principle of academic freedom."
Oz is vice chairman of Columbia's surgery department and still occasionally teaches. He also performs heart surgery at Columbia's affiliated hospital.