Anti-Freeze in Fast Food?

Cosmetic dentist Dr. Karent Sierra of "The Real Housewives of Miami" joins The Doctors to discuss how too much fast food can affect your body. Pediatrician Dr. Jim Sears explains how some fast food contains propylene glycol, an ingredient found in anti-freeze, to keep food fresh; however, the FDA states that propylene glycol is safe to consume. Anti-freeze, on the other hand, is highly toxic.