How Americans Got Hooked on Counting Calories More Than A Century Ago

In 1918, Lulu Hunt Peters—one of the first women in America to earn a medical doctorate—published the best seller Diet and Health With Key to the Calories, making a name for herself as an apostle for weight reduction in an era when malnutrition was a far greater public health threat than obesity. She pioneered the idea of measuring food intake via the calorie, which at the time was an obscure unit of measurement familiar only to chemists. 

A century later, the Centers for Disease Control and Prevention reports that 42 percent of American adults are clinically obese and that Type 2 diabetes is on the rise. With those who can afford it now turning to pharmaceuticals to help them lose weight, we’ll examine why and how calorie counting has failed to help Americans maintain a “healthy” weight. 

In this episode of “There’s More to That,” we hear from food historian Michelle Stacey about Peters’ legacy—and from Ronald Young Jr., creator and host of the critically acclaimed podcast “Weight For It,” about how American society continues to stigmatize what he calls “fat folks” for reasons that have nothing to do with public, or even individual, health.

A transcript is below. To subscribe to “There’s More to That,” and to listen to past episodes on the complex legacy of Sojourner Truth, how Joan Baez opened the door for Taylor Swift, how machine learning is helping archeologists to read scrolls buried by the eruption of Mount Vesuvius nearly 2,000 years ago and more, find us on Apple Podcasts, Spotify or wherever you get your podcasts.

Read Michelle Stacey's story about Dr. Lulu Hunt Peters in the June 2024 issue of Smithsonian here.

Listen to Ronald Young, Jr.'s podcast "Weight For It" here.

Find prior episodes of our show here.

There’s More to That is a production of Smithsonian magazine and PRX Productions.

From the magazine, our team is Chris Klimek, Debra Rosenberg and Brian Wolly.

From PRX, our team is Jessica Miller, Adriana Rosas Rivera, Genevieve Sponsler, Rye Dorsey, and Edwin Ochoa. The Executive Producer of PRX Productions is Jocelyn Gonzales.

Fact-checking by Stephanie Abramson.

Episode artwork by Emily Lankiewicz.

Music by APM Music.