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David Katz, M.D.
David L. Katz, MD, MPH, FACPM, FACP is the founding director of Yale University’s Prevention Research Center; President of the American College of Lifestyle Medicine; Editor-in-Chief of the journal, Childhood Obesity; Chief Science Officer for NuVal LLC; and director of the Integrative Medicine Center at Griffin Hospital. A clinician, researcher, author, inventor, journalist, and media personality, Dr. Katz is the recipient of numerous awards and recognitions, including an honorary doctoral degree; widely supported nominations for the position of U.S. Surgeon General; recognition by as one of the 100 most influential people in health and fitness in the world for the past 3 years; and inclusion by LinkedIN as one of the original 150 INfluencers. He has authored over 200 scientific papers and chapters, 15 books, and well over 1,000 columns and blogs- with a resulting social media following of roughly 500,000. A two-time diplomate of the American Board of Internal Medicine, and a board-certified specialist in Preventive Medicine/Public Health, he is recognized globally for expertise in nutrition, weight management and the prevention of chronic disease.

Dr. Katz has delivered addresses in numerous countries on four continents, and has been acclaimed by colleagues as the “poet laureate” of health promotion.

He and his wife, Catherine, founder of, live in Connecticut; they have 5 children.

Entries by David Katz, M.D.

Dietary Guidance: Sustainability or Stupidity?

(2) Comments | Posted May 27, 2015 | 5:24 PM

As a writer, I recognize the need to be blunt at times to deliver a message effectively. I don't shy away from that requirement, but I do try to avoid insult. For one thing, you cannot communicate effectively with someone you alienate. For another, I have far too...

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Newton, Nutrition, and the Tweets of Doom

(3) Comments | Posted May 26, 2015 | 9:22 AM

For all his contributions to science, controversial and otherwise, in modern context Sir Isaac Newton is most indelibly associated with one rather succinct assertion of physical truth: For every action, there is an equal and opposite reaction.

Were the governance of this third law of motion limited...

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The Family Dinner

(0) Comments | Posted May 22, 2015 | 10:18 AM

The family dinner may itself be an endangered species in this modern era of fast food, electronic distractions, and isolated eating on-the-fly. The composition of that meal may be among the reasons other species are endangered, and that confluence is today's harangue. But we may begin with our own species.

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Meals With Mephistopheles

(1) Comments | Posted May 15, 2015 | 11:40 AM

Pleased to meet you; won't you guess my name?

I have a deal for you. You can eat whatever you want and never have to worry about gaining weight or getting chronic disease -- but you will have to shave some years off of the life...

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Graduates: Rage Now!

(0) Comments | Posted May 12, 2015 | 12:21 PM

I was privileged to receive an honorary doctoral degree from Quinnipiac University this weekend, and to deliver the commencement address for the Graduate Programs in the Health Sciences. Here, more or less, is what I said.

Do not go gentle into that good night,
Old age...

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Bullets We Can't See

(0) Comments | Posted May 8, 2015 | 11:25 AM

We have reason, yet again, following the turmoil in Ferguson, Missouri -- and other places before, and since -- to be preoccupied with the wayward flight of bullets. There are, though, other "bullets" we can't see because they fly too slowly. Metaphorical bullets, that is.

The human brain...

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The Pope, the Planet and Public Health

(2) Comments | Posted May 5, 2015 | 5:56 PM

As far as I can tell, there seem to be two basic religious attitudes toward the planet. One may be summed up along the lines of: It was made for us, and we can do whatever we want with it (or to it). The other is: It was made for...

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Health Promotion? Here's the Thing...

(2) Comments | Posted May 5, 2015 | 4:54 PM

There is no shortage of health promotion efforts in our world. Everyone hears about them all the time, and those inclined to tune in here to what I have to say may be better informed in this area than most.

We have health promotion programs in schools, and at worksites....

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Oz, to Ozymandias: Science, Soundbites, Symptoms and Systemic Disease

(2) Comments | Posted April 27, 2015 | 9:59 AM

Enough already about Dr. Oz. Whichever side you happen to be on, we might collectively acknowledge that much of the noise being made about what is, at worst, a symptom, is itself an indication of a culture-wide disease. The fate of Ozymandias comes to mind.

Science is Ozymandias....

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Dietary Guidelines for Which Americans?

(2) Comments | Posted April 27, 2015 | 9:43 AM

We received the report of the 2015 Dietary Guidelines Advisory Committee some weeks ago. Some months from now, that science-based report, politics, and a whole lot of pestering will come together, and we will get the actual Dietary Guidelines for Americans 2015.

That's how it works, which I...

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Twisters, Teapots and the Land of (Doctor) Oz

(2) Comments | Posted April 21, 2015 | 12:09 PM

Mehmet Oz and I have long been friends. This is because I actually know the man, not because I am an ardent fan of daytime television.

Rather the contrary, to be honest. I think television in general, daytime television in particular, and perhaps health-related programming above all, inevitably caters...

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Is the FDA unKIND?

(0) Comments | Posted April 16, 2015 | 2:45 PM

Chances are, if you have ever ventured just about anywhere outside of your own house, that you are familiar with the increasingly ubiquitous KIND bars. And chances are as well, if that place you call home is anywhere other than under a large rock, you are now aware of

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Optimal Human Nutrition? There, There...

(7) Comments | Posted April 15, 2015 | 12:31 PM

The expression "there, there" is generally used to confer comfort; although exactly why, I have no idea -- and apparently no one else really knows, either. So, for instance, if you are frustrated by the constant discord and fractious bickering, and even religious zeal, about opposing views...

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Exercise: the Luminous, Latent Potential of a Little Action

(0) Comments | Posted April 10, 2015 | 12:11 PM

Mechanistically, exercise is entirely dependent on action potentials, while its incredible benefits may be characterized as the potential of action to enhance our lives. Ironically, perhaps, the luminous potential of action to promote our health is in a very fundamental way the exact opposite of the action potentials from which...

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Diet? I'll Have What He's Having!

(1) Comments | Posted April 7, 2015 | 2:54 PM

The new book by my friend, Dan Buettner, founder of the Blue Zones is officially available today. Yes, I definitely recommend you get it -- and while you're at it, tell a friend. I'll tell you why in a minute.

But first, let's establish a bit of context....

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Breast Cancer Screening: Where Are We Now?

(0) Comments | Posted April 2, 2015 | 2:20 PM

Among the more important medical studies reported in recent weeks, even resulting in that rarefied "front page, above the crease" coverage by the New York Times, was a paper in JAMA indicating that the interpretation of breast biopsies is not the infallible gold standard we had...

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Do You (Really) Know What's Good for You?

(2) Comments | Posted March 30, 2015 | 12:52 PM

I don't generally watch morning television; I doubt that will much surprise anyone. But watching a bit of morning television is all but unavoidable when you are in fact on morning television. Most of the shows are running their own programming continuously on monitors in the so-called "green room."


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Appreciation for Brian Wansink, Run Amok

(0) Comments | Posted March 23, 2015 | 11:04 AM

I love Brian Wansink and so was delighted to see his work celebrated quite prominently this past week. That is, I was delighted up to a point.

When I say I love Brian, I mean it quite genuinely, and both personally and professionally. Personally, we are...

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Dietitians, Food and Truth: Winds of Change?

(1) Comments | Posted March 19, 2015 | 3:50 PM

In what became a notorious move before ever the ink had time to dry on the hermetic plastic wrappers, the Academy of Nutrition and Dietetics -- until recently, the American Dietetic Association -- conferred its "Kids Eat Right" seal of approval on Kraft American Cheese Singles....

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Pi and Science, Sense and Cake

(0) Comments | Posted March 17, 2015 | 11:46 AM

I have been hearing a lot lately about the new documentary, Merchants of Doubt. Of course, I have been hearing from the merchants of doubt for quite some time, as have we all.

A common strategy for their ilk is, on any given topic, is to...

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