How to Tell the Difference Between Processed and Ultra-Processed Foods

Nutrition research is messy. The work on ultra-processed foods tidies things up.

Markham Heid
THE NUANCE
Published in
6 min readJun 22, 2023

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Photo by Franki Chamaki on Unsplash

A few years ago, I interviewed a Harvard professor of nutrition named David Ludwig.

Dr. Ludwig is a bestselling author and one of the leading voices in the nutritional sciences…

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Markham Heid
THE NUANCE

I’m a frequent contributor at TIME, the New York Times, and other media orgs. I write mostly about health and science. I like long walks and the Grateful Dead.