Dr. Marty Makary: The purpose of science is to challenge deeply held assumptions.

Dr. Marty Makary: "The purpose of science is to challenge deeply held assumptions. That's how we advance the field and discover things. We're not discovering things right now. And by the way, the NIH, we just did an analysis. One in six grants goes to health, equity, and disparities research. Well, just describing these differences is not interesting. We've known about them. Reducing the disparities is interesting, and that's what we have to do by talking about our poison food supply."