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Yes, You Really Can Make Food From Thin Air—And We Tried It
Nov 04, 2025 48 min

Yes, You Really Can Make Food From Thin Air—And We Tried It

Every second of every day, plants on earth do something miraculous: they take the carbon dioxide from air and turn it into food. With very few exceptions, everything we eat starts out that way. But...

Pizza Pizza!
Oct 21, 2025 46 min

Pizza Pizza!

At last, an episode on pizza! But that raises a tricky question: what exactly is pizza? As it turns out, the original pizzas from eighteenth-century Naples looked nothing like a standard slice—they...

Everything You Know About Metabolism Is Wrong
Oct 07, 2025 48 min

Everything You Know About Metabolism Is Wrong

If you’ve heard of metabolism, you’ve probably heard endless tips and tricks to boost it, from working out to drinking green tea. The idea is that a slow metabolism leads to weight gain, and speedi...

Talking Taco
Sep 09, 2025 43 min

Talking Taco

Whether or not it's Tuesday, tacos pretty much always hit the spot—and not just in their homeland in Mexico. These days, the taco can be found all over the world, although it's acquired some strang...

Tomatoes: A Love Story
Aug 19, 2025 50 min

Tomatoes: A Love Story

The tomato is Gastropod’s favorite flavor of summer, and we’re not alone: today, it’s the most popular vegetable on the planet, despite the fact that it's technically a fruit. But, until a couple o...

The Most Dangerous Fruit in America
Aug 05, 2025 45 min

The Most Dangerous Fruit in America

It's the epitome of summertime: there’s nothing like a cold, juicy slice of red watermelon on a swelteringly hot day. But, once upon a time, watermelons were neither red nor sweet—the wild watermel...

The Colorful Tale of Mexico's A-maize-ing Grain
Jul 22, 2025 50 min

The Colorful Tale of Mexico's A-maize-ing Grain

This might sound corny, but the relationship between maize and humanity is essential. We rely on corn—globally, more maize is grown than wheat or rice—and, in turn, corn is utterly dependent on us,...

Should You Be Eating Poison Oak?
Jul 08, 2025 31 min

Should You Be Eating Poison Oak?

Probably not. But Wall Street Journal reporter Jeff Horwitz decided to try it anyway, putting his body — and specifically his butt — on the line to answer a seemingly straightforward question: Is i...

Feasting With Montezuma: Food and Farming in a Floating City
Jun 10, 2025 52 min

Feasting With Montezuma: Food and Farming in a Floating City

Five centuries ago, before Spanish conquistadors arrived, what's now Mexico City was the Aztec capital of Tenochtitlan—and it took the European invaders' breath away. It was built on an island thre...

Seed Oil Scare: The Curious Case of Canola
Apr 08, 2025 47 min

Seed Oil Scare: The Curious Case of Canola

If you've been hearing that canola is a killer, you're not alone. It's one of the so-called "hateful eight" seed oils: Robert F. Kennedy, Jr. says it's among the most deadly things you can eat, and...