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.
Imagine a new study, published, one presumes in Road & Track, or Car and Driver, purporting to show that square wheels outperform round wheels. Imagine the attendant headlines: “Everything Thought Known About Wheels Proves Wrong!” and “Wheel Guidelines Need Radical Change!”
I am quite confident about the fundamental truths of diet for good health. I am quite confident because they are predicated on a massive aggregation of evidence of every description, spanning methods, populations, and decades. I am quite confident because I share these convictions with a veritable who’s who of leading experts, with predilections from vegan to Paleo, from all around the globe.
Perhaps you are in a hurry. If so, here’s the bottom line at the top: it turns out women can use hormone replacement to manage symptoms at menopause with, at worst, no adverse, long-term effect on the risk of mortality or any major chronic disease.
In my work and my world, I am dealing routinely with whiplash-inducing headlines about health, and nutrition in particular (“no, wait, fruits and vegetables are bad for us this week!”) that raise questions about science, sense, and knowledge. When whatever we think we know, however reliably we think we know it, is called into question so routinely, it begs the question: how do we know?