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Plain English with Derek Thompson

How Americans Got Everything About Food—Fat, Sugar, and Obesity—‘Entirely Backwards’

Plain English with Derek Thompson

The Ringer

News Commentary, News

4.81.8K Ratings

🗓️ 17 January 2023

⏱️ 46 minutes

🧾️ Download transcript

Summary

Today’s episode is about what Americans don’t get about food—and the historical origins of our diet delusions. Our guest is Dr. David Ludwig, an endocrinologist who has researched and written on obesity and diet. He explains why scientists still haven't arrived at a consensus on obesity, why he thinks the conventional wisdom about calories and fat is wrong, what he thinks is really going on, and why the history of diet advice has been so wrong in the last half-century. On Friday, we'll continue the conversation on diet and obesity with an episode on the next generation of weight-loss medication, which could change the way America thinks about self-image and obesity forever. If you have questions, observations, or ideas for future episodes, email us at [email protected]. You can find us on TikTok at www.tiktok.com/@plainenglish_ Host: Derek Thompson Guest: David Ludwig Producer: Devon Manze Learn more about your ad choices. Visit podcastchoices.com/adchoices

Transcript

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0:26.7

Today's episode is about what Americans don't understand about food,

0:33.6

and the historical origins of our diet's delusion.

0:39.6

So when I was a kid, my dad's favorite comedian was Lewis Black, and Lewis Black had this

0:46.0

amazing and, in our household, very famous riff on nutrition and milk, and how there are way

0:52.8

too many kinds of drink these days that call themselves milk, but don't actually come from cows.

0:58.8

It's not soy milk. It's soy juice. That was my dad's favorite line. It's soy juice.

1:04.4

But it begins with his great one liner that basically sums up the state of diet science.

1:13.2

We know so much about health that we know nothing, okay? We know nothing. Case in point is

1:19.7

milk good or bad. I read my case. You don't know. You don't know. And when I was a kid, you knew.

1:28.8

I don't want to hold up Lewis Black as some kind of expert food historian, but there is a lot

1:34.2

more truth in this joke than you might think. In the 1960s, we knew that milk was good for us.

1:43.5

But as heart disease increased, scientists fixated on the fact that the US diet had way too many

1:49.5

calories. And they scrutinized the most calorie dense part of our diet, which was fat.

1:56.9

So scientists started to wage a war against fat. And the diet industry, the food industry, came out

2:03.6

with all of these fat free options. But as we waged that war, we did so with a very particular weapon.

2:11.6

Sugar. And so, as low fat alternatives exploded, something else often replaced the fat in

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