Nutrition & Preventive Medicine Expert; Founder of Yale-Griffin Prevention Research Center; Author of "Disease-Proof" & "The Truth About Food"; Chief Medical Officer at Tangelo

Hamden, CT, USA
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David L. Katz Biography

Dr. David L. Katz, MD, MPH, FACPM, FACP, FACLM, is recognized for his expertise in nutrition, preventive medicine, and lifestyle medicine. Board-certified in internal medicine and preventive medicine/public health, Katz has contributed to chronic disease prevention, lifestyle medicine, integrative medicine, and nutrition. He was the lead architect of the first fully accredited, combined training program in internal medicine and preventive medicine in the United States. Katz has held faculty positions at Yale School of Medicine, Yale School of Public Health, and Yale School of Nursing, and has provided patient care in primary care internal medicine and integrative medicine for approximately 30 years, receiving awards for clinical care and bedside teaching.

Katz is the founder and former director of Yale University's Yale-Griffin Prevention Research Center, where he managed approximately $40 million in research funding. He also founded the True Health Initiative, a nonprofit organization promoting healthy living and disease prevention, uniting health leaders from nearly 50 countries to build consensus around the concept that lifestyle is medicine. Katz is past president of the American College of Lifestyle Medicine and founder and CEO of Diet ID, Inc., acquired by Tangelo, a food-as-medicine company, where he serves as chief medical officer. He also serves as a senior science advisor to Blue Zones and Blue Zones Health.

Katz developed the research methods known as evidence mapping and evidence threshold pathway mapping, and is the principal inventor of the Overall Nutritional Quality Index (ONQI) algorithm. He holds multiple U.S. patents, has approximately 250 peer-reviewed publications, and has published hundreds of online and newspaper columns. Katz has authored or co-authored 19 books, including textbooks in nutrition, preventive medicine, and epidemiology. Notable works include "Disease-Proof: The Remarkable Truth About What Makes Us Well," "The Truth About Food," and "How to Eat," co-authored with Mark Bittman. Katz was the inaugural editor-in-chief of the peer-reviewed journal "Childhood Obesity."

Katz has served as a nutrition columnist for "O, The Oprah Magazine," an on-air medical contributor for ABC News, and a health editor and contributor at The Huffington Post. His media portfolio includes appearances on major news programs and contributions to leading magazines and newspapers, including op-eds in The New York Times and Wall Street Journal. He has presented at conferences in all 50 U.S. states and in multiple countries on six continents. Katz has received awards for teaching, writing, and contributions to public health, including a James Beard Foundation Award nomination in health journalism, three honorary doctorates, a Lifetime Achievement Award from the Doctors' World Gala, and the President's Award from the American College of Lifestyle Medicine. He is a member of Sigma Xi, the scientific research honor society.

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Speaker profile last updated by AAE Talent Team on 10/30/2026.

David L. Katz Speaking Topics

  • Lifestyle is Medicine: How Boost Your Health & Longevity

    Dr. David Katz provides practical tips to live a healthy lifestyle for longevity. Addressing precise nutrition, food as medicine, nutrient deficiencies, benefits of supplementation, and other related topics, Dr. Katz lays out the latest in nutrition and longevity science.

  • Lifestyle Medicine in Primary & Specialty Care

    Dr. David Katz describes the blend of public politics and personal empowerment needed to take us toward a healthier future. Dr. Katz considers how clinicians can be involved with changing their patients' habits, educating their patients, and understanding the nutrition crisis.

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David L. Katz Videos

Dr. David Katz: How To Eat Healthy Based On Science

Dr. David Katz: How To Eat Healthy Based On Science

Dr. Katz is one of the top nutrition experts in the world. Heโ€™s the founding director of Yale Universityโ€™s Prevention Research Center, heโ€™s...

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  • What topics does David L. Katz speak about?

    David L. Katz is a keynote speaker and industry expert whose speaking topics include Author, Diabetes, Fitness, Health & Wellness, Heart Health, Medicine, Nutrition, Obesity Awareness Month, Public Health, Research & Exploration, Science
  • Where does David L. Katz travel from?

    David L. Katz generally travels from Hamden, CT, USA, but can be booked for private corporate events, personal appearances, keynote speeches, or other performances. For more details, please contact an AAE Booking agent.
  • Who is David L. Katzโ€™s agent?

    AAE Speakers Bureau has successfully booked keynote speakers like David L. Katz for clients worldwide since 2002. As a full-service speaker booking agency, we have access to virtually any speaker or celebrity in the world. Our agents are happy and able to submit an offer to the speaker or celebrity of your choice, letting you benefit from our reputation and long-standing relationships in the industry. Please click the Check Availability button above and complete the form on this page including the details of your event, or call our office at 1.800.698.2536, and one of our agents will assist you to book David L. Katz for your next private or corporate function.
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David L. Katz is a keynote speaker and industry expert who speaks on a wide range of topics such as Lifestyle is Medicine: How Boost Your Health & Longevity, Lifestyle Medicine in Primary & Specialty Care, Integrative Medicine: A Bridge Over Healthcareโ€™s Troubled Waters and Methods to Approach Personalized Nutrition. The estimated speaking fee range to book David L. Katz for your event is available upon request. David L. Katz generally travels from Hamden, CT, USA and can be booked for (private) corporate events, personal appearances, keynote speeches, or other performances. Similar motivational celebrity speakers are Jessie Inchauspรฉ, Alex Zhavoronkov, Edward M. Schaeffer, M.D., Ph.D., Jeffrey Bland and Catherine Price. Contact All American Speakers for ratings, reviews, videos and information on scheduling David L. Katz for an upcoming live or virtual event.

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