Dr. Greger: ''In this video, I try to answer the question that arises in the minds of pretty much anyone dipping even a single toe into the lifestyle medicine literature: “Wait a second. If this were true, why didn’t my doctor tell me?” If, for example, our number-one killer can be reversed through diet, why isn’t it front-page news and taught to every medical student, broadcast from every mountaintop by medical organizations, and featured in our government dietary guidelines? Still confused? Go here Given that diet is the number-one cause of death and disability, nutrition is surely the number-one subject taught in medical school, right? And it’s certainly the number-one issue your doctor talks with you about, right? If only. How can there be such a disconnect between the available evidence and the practice of medicine?