David Katz Healthcare Expert

David L. Katz, MD, MPH, FACPM, FACP, FACLM, is the Founding Director (1998) of Yale University’s Yale-Griffin Prevention Research Center, and former 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.


Probiotic Pros and Cons

I will avoid any semblance of suspense or drama here: I am a proponent of probiotics. I take one daily. I even helped formulate one, uniquely positioned for use at night.


Sad State of American Hearts

My lament is literal, not figurative. As a humanist, I might well have cause to lament the figurative state of the American heart, too: the roiling churn of diverse “isms” that are the new normal, disfiguring and pockmarking the ideals and values a big-hearted land of inclusiveness has long beamed to the world. But my lament is literal. To paraphrase an NBC News headline that stated the case bluntly: almost half of all Americans have heart disease.


Diet: If We Can't Be Right, Is There a Best Way to Be Wrong?

Predictably, and yes, sadly, the publication of the EAT-Lancet Commission Report on “healthy diets from sustainable food systems” by a large, multidisciplinary, multinational group of world-leading experts ran immediately into discrediting criticisms, generally by far-less-qualified commentators. Some such whingeing, in places like “Beef Magazine,” are too dismissible to bother dissecting. But others- in places like, for instance, Psychology Today - might appear less so.


Toward a One-Diet World

I am publicly pledged to favor epidemiology over ideology, and do just that. That doesn’t mean I have no ideology, it just means that where my professional efforts are concerned, I subordinate my personal preferences to the weight of evidence. I advocate for the dietary theme on the common ground of science, sense, and global expert consensus. My personal opinions and preferences are appended as footnotes.


What Accounts for the Prevalence of Food Allergy?

A recent paper in JAMA on the prevalence of food allergies in the US spawned headlines in opposing directions. Some media outlets emphasized that many fewer people have food allergies than believe they do, and thus implied that the problem has been exaggerated. Others noted that the numbers affected – nearly 11% of the surveyed sample of 40,000 adults intended to reflect the general population - were high just the same.

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