David Katz Science Guru

David L. Katz, MD, MPH, FACPM, FACP, FACLM, is the Founding Director (1998) of Yale University’s Yale-Griffin Prevention Research Center, and current President of the American College of Lifestyle Medicine. He has published roughly 200 scientific articles and textbook chapters, and 15 books to date, including multiple editions of leading textbooks in both preventive medicine, and nutrition. He has made important contributions in the areas of lifestyle interventions for health promotion; nutrient profiling; behavior modification; holistic care; and evidence-based medicine. David earned his BA degree from Dartmouth College (1984); his MD from the Albert Einstein College of Medicine (1988); and his MPH from the Yale University School of Public Health (1993). He completed sequential residency training in Internal Medicine, and Preventive Medicine/Public Health. He is a two-time diplomate of the American Board of Internal Medicine, and a board-certified specialist in Preventive Medicine/Public Health. He has received two Honorary Doctorates.


Diet for Human Performance: Does This Change the Game?

I am in the movie, The Game Changers, debuting at a thousand theaters throughout the U.S. on September 16. In all fairness, my role is rather closer to Mike Wazowski on TV than leading role- but still- I am in it. More on that later.


What is True? The Evidence Base for Evidence Based

To know that something is true - not to have faith in it, wish for it, hope, or believe it to be true, but to know - perhaps we can agree that you need some kind of evidence. To know something is true with a very high level of confidence, perhaps we can agree further that you need high-caliber, genuinely convincing evidence. Hold that thought while we toss an apple.


Diet, Dots, and Doom

Poor diet is the leading cause of premature death in the United States, and an increasing portion of the world. These are not my words, but paraphrase one of the more jarring assertions among many in an Op-Ed in the New York Times this past week. It is a fact. 


Nutrition in Every EHR? If Only We Could

In a blunt, bracing, compelling commentary in the New York Times, the Dean of the Tufts Friedman School of Nutrition Science and Policy, and a former U.S. Secretary of Agriculture characterize diet accurately as the leading cause of premature mortality in our culture. What should be nourishing us and sustaining us, what should be fuelling our vitality and building the robust bodies of our growing children- is instead killing far too many of us.


Keto, Balance, and the Weight of the World

A colleague asked me if I thought a recent article in the New York Times on the health effects of the ketogenic diet by Anahad O’Connor was balanced. In a superficial sense, the answer might have been “yes.” Mr. O’Connor considered pros and cons, noted opposing views by relevant experts, cited some salient concerns, and acknowledged the absence of much relevant evidence- notably, longer term effects.