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Why Nutrition Isn’t That Complicated: A Conversation with Marion Nestle, Part 1

What a Cigarette Conference Revealed About Food—and How Marketing Shapes What We Believe

Lourdes Castro MS RD's avatar
Lourdes Castro MS RD
Dec 01, 2025
∙ Paid

Marion Nestle hardly needs an introduction, at least not in the circles where people debate things like menu labeling and industry-funded studies. She’s a professor of nutrition, food studies, and public health; an outspoken force in food policy; a prolific newsletter writer, and the author of seventeen books—many of which have shaped how most of us think and teach about food.

I was lucky enough to study in the department she led at NYU, where her work nudged me toward the career I have now. These days, I get to call her a friend and informal mentor. (Her subscribing to Fed remains one of the highest compliments of my career.) We often exchange thoughts about the never-ending game of nutrition whack-a-mole: that strange cultural moment where a fundamentally boring, evidence-based field keeps getting upstaged by people who’ve never cracked open a metabolism textbook.

So when the chance came to sit down with Marion to talk about her new book, What To Eat Now, plus a handful of timely top…

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