Taste is the oldest of our five senses, and yet perhaps the least understood. It’s far more complicated than salty versus sweet: new research is dramatically expanding our knowledge of taste, showing that it’s intimately connected to obesity, mood, immunity, and more. In this episode, we get into the science of how taste works, why we taste what we do, and what makes supertasters unique. And finally, we hack our taste buds—for fun, but, in the future, maybe for health, too. Learn more about your...
Mar 14, 2017•46 min•Transcript available on Metacast “There’s the faintest soupçon of asparagus and just a flutter of Edam cheese,” says Paul Giamatti in the movie Sideways. Believe it or not, he’s describing pinot noir, not quiche. The world of sommeliers, wine lists, and tasting notes is filled with this kind of language, prices seemingly rising in step with the number of bizarre adjectives. It’s tempting to dismiss the whole thing as B.S., but listen in: this episode, author Bianca Bosker takes us along on her journey into the history and scien...
Feb 28, 2017•45 min•Transcript available on Metacast With flexitarianism on the rise throughout the developed world, and everyone from Bill Clinton to Beyoncé endorsing the benefits of a vegetarian or vegan diet, it can sometimes seem as though meat is just a bad habit that the majority of us are too weak-willed to kick. But is giving up meat morally superior, healthier, and better for the planet, as its advocates insist? This episode, we fearlessly dive into the long, tangled history and surprisingly nuanced science behind those claims. Listen in...
Feb 14, 2017•47 min•Transcript available on Metacast In the weeks before Valentine’s Day, U.S. consumers will buy nearly 58 million pounds of chocolate. This love affair is not limited to just one day or one country: chocolate has spread from its native home in Central and South America to conquer the world. But today, cacao cultivation is facing a series of wicked problems—ones that threaten to drastically shrink the supply of chocolate just as global demand grows. If the threats aren’t taken seriously, might we lose one of our favorite treats? A...
Jan 31, 2017•43 min•Transcript available on Metacast Early humans may have visited each others’ caves for a shared meal, but they wouldn’t have expected to be served at their own table, or to choose when and what to eat. But today, restaurants are ubiquitous: there are millions of them worldwide, and the average American eats roughly 200 meals a year in one. So who invented the first restaurant, and when and where did it appear? How did it change society—and change along with society? And, in today’s saturated market, is there a scientific way to ...
Jan 17, 2017•44 min•Transcript available on Metacast ‘Tis the season for a glass of bubbly—but this episode we’re not talking champagne, we’re talking seltzer. America is in the throes of a serious seltzer craze, with consumption of the bubbly stuff doubling in only a decade, from 2004 to 2014. But where does seltzer come from, and why is it called “seltzer,” rather than simply “sparkling water”? Is there any truth to the rumors that seltzer can combat indigestion—or that it will rot our teeth? Why are all the hipsters crushing cans of LaCroix, an...
Dec 13, 2016•40 min•Transcript available on Metacast American food has a reputation for being bland—but, according to historical gastronomist Sarah Lohman, “It’s nonsense that Americans don’t like spicy food.” Lohman is the author of a new book, Eight Flavors: The Untold Story of American Cuisine, which explores the stories behind the flavors that have come to define American cuisine. In this episode, she takes us on a journey through the history and science of black pepper, the oldest flavor described in her book, to the hot new taste sensation t...
Nov 29, 2016•41 min•Transcript available on Metacast Honey seems like a simple, comforting food, slathered on toast, spooned down to soothe sore throats, and beloved of bears, both plush and real. In reality, this sticky combination of bee spit and evaporated nectar is a powerful and ancient ingredient. For much of history, honey was humanity’s main source of sweetness, as well as our first vehicle for getting drunk. Unlike table sugar, honey also comes in an infinite variety of textures and flavors, influenced by the two million blossoms from whi...
Nov 15, 2016•42 min•Transcript available on Metacast Pasta, sushi, tacos, samosas, and pad thai: In the U.S., enthusiastic eaters will likely be able to name traditional dishes from a wide variety of cuisines around the world. But most of us couldn’t name a single Native American dish from any one the vast network of tribes, cultures, and cuisines that spread across the U.S. before Europeans arrived. Today, farmers, activists, and chefs are trying to change that. They’re bringing back Native foods—not just to teach all Americans about the indigeno...
Nov 01, 2016•42 min•Transcript available on Metacast This week, we are taking on one of the universe’s great mysteries: how many fish are in the sea? If you stop to think about it, it seems almost impossible to figure out how many fish there are—after all, they’re basically invisible, not to mention constantly moving. But how else are we to know how many we should take out to eat? Join us as we set sail to figure out how we count fish—and why it matters. Learn more about your ad choices. Visit podcastchoices.com/adchoices
Oct 04, 2016•44 min•Transcript available on Metacast Seaweed farming is booming: the global harvest has doubled in the past decade, according to a new report from the United Nations University, and it’s now worth more than all the world’s lemons and limes. Most of that seaweed ends up in our food, though there is a growing market in seaweed-based cosmetics and drugs. So what does a seaweed farm look like? How does it help restore the ocean? And what can you do with kelp in the kitchen, other than wrap sushi? Join us for a conversation with Bren Sm...
Sep 13, 2016•28 min•Transcript available on Metacast Salt is a magical substance. It reduces bitterness, enhances sweetness, boosts flavor, and preserves perishable foods. Without it, we would die: the human body can’t make sodium, but our nerves and muscles don’t work without it. It was considered rare until quite recently, so it’s hardly surprising that, throughout history, salt has been the engine behind empires and revolutions. Today, there’s a new battle in the salt wars, between those who think that we eat too much of it and it’s killing us—...
Aug 23, 2016•41 min•Transcript available on Metacast If you haven’t tasted kombucha yet, you probably will soon. The sour-sweet, fizzy, fermented tea is becoming ubiquitous in trendy cafes, workplaces, and health food stores across America. Where did it come from, and how did it get so popular? And what in the world is the slimy, beige blob that produces it? From German POWs to Lindsey Lohan to a kombucha zoo at Tufts University, this episode explores the history and science of summer’s hottest drink. Learn more about your ad choices. Visit podcas...
Aug 08, 2016•42 min•Transcript available on Metacast Roughly two percent of Americans are Jewish, and only a small fraction of them keep kosher. Yet between a third and a half of all packaged food in an American supermarket has a kosher label on it. How did kosher law become big business? Join us this episode as we find out how ancient Jewish dietary laws have shaped and been shaped by the science of processed food, from Coca-Cola to Jell-O and beyond. Learn more about your ad choices. Visit podcastchoices.com/adchoices
Jul 26, 2016•43 min•Transcript available on Metacast Juicy, crispy, crunchy…fried chicken is undoubtedly delicious. But it’s also complicated, in ways that go far deeper than the science behind that perfect crust. From slavery to entrepreneurship and from yard fowl to Gospel bird, the story of fried chicken is filled with challenging contradictions. Grab a drumstick and listen in. Learn more about your ad choices. Visit podcastchoices.com/adchoices
Jul 12, 2016•46 min•Transcript available on Metacast The invention of food packaging is one of humanity’s greatest achievements. It may seem hard to imagine today, but the first clay pots made the great civilizations of the ancient world possible, while paper’s first use, long before it became a surface for writing, was to wrap food. But packaging’s proliferation, combined with the invention of plastics, has become one of our biggest environmental headaches. In this episode, we explore the surprising history of how our food got dressed—and why and...
Jun 28, 2016•44 min•Transcript available on Metacast In the 1960s, cherry tomatoes were nearly impossible to find in the grocery store. By the 1990s, it was hard to get a salad without them. Somehow, within a couple of decades, the tiny tomatoes had taken over. Where did they come from? And who lay behind their sudden rise to glory? Learn more about your ad choices. Visit podcastchoices.com/adchoices
Jun 14, 2016•36 min•Transcript available on Metacast Pull up a bar stool and prepare to open both your mind and your palate: it’s time to meet beer before it settled down into the fizzy brown brew we know and love today. The ales in this episode of Gastropod represent the future of flavor, but take their inspiration from the pre-industrial pint. Join us as we meet brewers who are making beer with local herbs, roast chicken, and yeasts scraped off the skin of wild blueberries—and then taste the surprisingly delicious results. Learn more about your ...
May 31, 2016•44 min•Transcript available on Metacast A slice of lime in your cocktail, a lunchbox clementine, or a glass of OJ at breakfast: citrus is so common today that most of us have at least one lurking on the kitchen counter or in the back of the fridge. But don’t be fooled: not only were these fruits so precious that they inspired both museums and the Mafia, they are also under attack by an incurable immune disease that is decimating citrus harvests around the world. Join us on a historical and scientific adventure, starting with a visit t...
Apr 19, 2016•43 min•Transcript available on Metacast It’s easy to assume that burglars and thieves are always after conventional valuables: cash, jewels, or high-end electronics. But some of the most memorable heists actually involve food. Inspired by Geoff Manaugh’s new book, A Burglar’s Guide to the City, we dive into the ancient history and detective science behind food crime. Learn more about your ad choices. Visit podcastchoices.com/adchoices
Apr 05, 2016•39 min•Transcript available on Metacast A tablespoon of it will kill you, but most of us feel like death without it: we’re talking about caffeine this episode. Inspired by a listener question — does green tea have more or less caffeine than black? and what about yerba mate? — Cynthia and Nicky explore the history and science of the world’s most popular drug. Listen in as we discover the curious effect of birth control pills on how our bodies process it, calculate how much of an edge it gives athletes, and learn what dolphin dissection...
Mar 21, 2016•42 min•Transcript available on Metacast Many people only think of maple syrup at the breakfast table, when they’re facing down a stack of hot, fluffy pancakes or some French toast. They’re missing out. Maple is undergoing a major boom, newly ascendant in beverage aisles, Asian kitchens, and even biomedical research laboratories. In this episode, we visit sugar shacks and talk to the experts to find out why tree sap is so hot right now—and whether it can live up to the hype. Learn more about your ad choices. Visit podcastchoices.com/ad...
Mar 08, 2016•37 min•Transcript available on Metacast How do we learn to eat? It may seem like an obvious question, but it’s actually quite a complicated process. Who decided that mushed-up vegetables were the perfect first food—and has that always been the case? What makes us like some foods and hate others—and can we change? Join us to discover the back story behind the invention of baby food, as well as the latest science on flavor preferences and tips for how to transform dislikes into likes. Learn more about your ad choices. Visit podcastchoic...
Feb 23, 2016•49 min•Transcript available on Metacast Throughout history, humans have attributed aphrodisiac powers to certain foods, from legendary lover Casanova’s diet of fifty oysters for breakfast to chocolate, the default Valentine’s Day gift for the uninspired. But how did such varying vegetables as asparagus, potatoes, and Peruvian maca acquire this reputation—and do any of them actually deserve it? Join us to find out the history and science behind edible aphrodisiacs in this NSFW episode of Gastropod. Learn more about your ad choices. Vis...
Feb 09, 2016•40 min•Transcript available on Metacast For most of us, the calorie is just a number on the back of the packet or on the display at the gym. But what is it, exactly? And how did we end up with this one unit with which to measure our food? Is a calorie the same no matter what type of food it comes from? And is one calorie for you exactly the same as one calorie for me? To find out, we visit the special rooms scientists use to measure how many calories we burn, and the labs where researchers are discovering that the calorie is broken. A...
Jan 26, 2016•47 min•Transcript available on Metacast Cheese science, cilantro phobia, and fork usage: we’ve covered it all on Gastropod. And, for our special end-of-year episode, we’re bringing you updates on some our favorite stories. Join us to find out what happened next… Ever wondered what happened to those researchers in Colombia who discovered they could grow five times more food by adding specially-bred microbes to the soil? Or what’s new in cheese microbiology? This is your chance to find out! To celebrate the end of 2015, we’ve created a ...
Dec 15, 2015•34 min•Transcript available on Metacast They’re a kingdom unto themselves, neither animal, vegetable, nor mineral. They count among their number both the world’s largest organism and millions of microscopic, single-celled creatures. And yet not only have they been an important—and delicious—food source for thousands of years, but they also seem to have powerful medicinal properties. What are these mysterious creatures? Fungi! Learn more about your ad choices. Visit podcastchoices.com/adchoices
Nov 17, 2015•41 min•Transcript available on Metacast Are you part of Generation Peak Booze? In this episode, we dive into the factors behind the ups and downs in alcohol consumption in the U.K. and the U.S. over the course of the twentieth century, we explore the long-term health effects of peak booze, and we get a sneak peek at the synthetic alcohol of the future. Cheers! Learn more about your ad choices. Visit podcastchoices.com/adchoices
Nov 03, 2015•36 min•Transcript available on Metacast It’s nearly the Day of the Dead in Mexico, which gives us the perfect excuse to get familiar with the country’s national spirit: tequila. Or wait, should that be mezcal? And what’s the difference, anyway? In this episode of Gastropod, Cynthia and Nicky travel to Mexico to explore the history and science of distilled agave, and get tangled up in a complex story of controversies, clones, and culture. Learn more about your ad choices. Visit podcastchoices.com/adchoices
Oct 20, 2015•46 min•Transcript available on Metacast On the surface, it’s just a leafy green herb. Its feathery fronds add a decorative note and a distinctive flavor to dishes across Latin America and Asia, from guacamole to phở. And yet cilantro is the most divisive herb in the kitchen, inspiring both deep dislike and equally deep devotion. What’s the history and science behind these strong reactions—and can cilantro disgust ever be overcome? Learn more about your ad choices. Visit podcastchoices.com/adchoices
Oct 06, 2015•34 min•Transcript available on Metacast 
