1 00:00:06,049 --> 00:00:07,050 [ticking] 2 00:00:07,133 --> 00:00:11,429 [narrator] Every ten seconds, humans kill roughly 24,000 animals for food. 3 00:00:12,680 --> 00:00:15,099 That adds up to 75 billion each year. 4 00:00:16,225 --> 00:00:19,520 And it's done with a speed and efficiency previously unimaginable. 5 00:00:20,396 --> 00:00:24,150 While the global population has more than doubled in the last 50 years, 6 00:00:24,233 --> 00:00:27,070 the amount of meat we produce has more than quadrupled. 7 00:00:27,695 --> 00:00:30,114 There are now approximately one billion pigs, 8 00:00:30,198 --> 00:00:31,324 one billion sheep, 9 00:00:31,407 --> 00:00:33,117 1.5 billion cows, 10 00:00:33,701 --> 00:00:36,829 and 23 billion chickens on the planet. 11 00:00:37,997 --> 00:00:41,209 Raising this many animals is a marvel of modern technology, 12 00:00:41,959 --> 00:00:43,920 but it's reaching a breaking point. 13 00:00:44,170 --> 00:00:48,341 The land, water, and greenhouse gas emissions involved in meat production 14 00:00:48,424 --> 00:00:50,551 are rapidly becoming unsustainable. 15 00:00:50,635 --> 00:00:54,138 The way we eat meat will go down as a historical anomaly, 16 00:00:54,222 --> 00:00:56,224 one that began in the mid-20th century 17 00:00:56,766 --> 00:00:59,435 and can't continue for much more of the 21st. 18 00:01:00,603 --> 00:01:02,980 But demand for meat isn't going away. 19 00:01:03,064 --> 00:01:08,528 In fact, it's expected to hit 455 million tons by 2050. 20 00:01:09,237 --> 00:01:10,321 So... 21 00:01:10,404 --> 00:01:13,950 how will future generations satisfy their craving for meat? 22 00:01:15,201 --> 00:01:17,036 [theme song playing] 23 00:01:18,955 --> 00:01:22,667 [man] Probably food was one of the first uses to which animals were put. 24 00:01:23,000 --> 00:01:24,168 [man 2] It is free from disease 25 00:01:24,252 --> 00:01:26,587 and can be eaten without fear of contamination. 26 00:01:26,671 --> 00:01:29,340 [man 3] The skins are dropped to the fleshing machine. 27 00:01:29,423 --> 00:01:31,050 [woman] The excessive consumption of meat 28 00:01:31,134 --> 00:01:33,553 is what makes it unsustainable for the planet. 29 00:01:33,636 --> 00:01:35,763 What else they wanna do? Ban beef altogether? 30 00:01:35,847 --> 00:01:38,850 We're built to eat plants. Animals are just a middle man. 31 00:01:38,933 --> 00:01:42,937 [man] Clean, safe, wholesome, and truthfully labeled. 32 00:01:43,020 --> 00:01:44,522 It is a lovely pot roast. 33 00:01:50,361 --> 00:01:54,907 [narrator] It can be hard for meat eaters to describe what makes meat taste so good. 34 00:01:54,991 --> 00:01:57,201 [boy] Like, it tastes... satisfying. 35 00:01:57,535 --> 00:02:02,081 Um, like, it makes me feel like, uh... like I'm filled. 36 00:02:02,165 --> 00:02:03,875 It's really juicy. 37 00:02:03,958 --> 00:02:06,586 And it's yummy because... 38 00:02:06,669 --> 00:02:08,004 it's just really juicy. 39 00:02:08,504 --> 00:02:13,009 You can't compare it to anything, because it's not the same as anything. 40 00:02:14,468 --> 00:02:19,223 [narrator] The indescribable sensation we get from eating meat goes way back. 41 00:02:21,058 --> 00:02:25,521 This is a 3.4 million-year-old animal bone found in Ethiopia. 42 00:02:26,981 --> 00:02:27,899 At the time, 43 00:02:27,982 --> 00:02:31,861 Australopithecus afarensis roamed the plains of Eastern Africa. 44 00:02:32,778 --> 00:02:35,656 These early humans had large flat teeth 45 00:02:35,740 --> 00:02:39,160 adapted for a diet of fruits, seeds, and leaves. 46 00:02:39,911 --> 00:02:43,789 But these cut marks are the earliest evidence of a new behavior: 47 00:02:43,873 --> 00:02:44,749 butchering. 48 00:02:46,250 --> 00:02:48,419 Humans had started to eat meat. 49 00:02:49,795 --> 00:02:54,300 Three of the great omnivores of the world are humans, rats, and cockroaches, 50 00:02:54,383 --> 00:02:58,346 because we're all over the place. We can always find something to eat. 51 00:02:58,679 --> 00:03:03,309 [narrator] Meat is packed with calories, proteins, fats, minerals, and vitamins 52 00:03:03,392 --> 00:03:05,269 including vitamin B12, 53 00:03:05,353 --> 00:03:08,314 which is hard to find in nature outside of animal products. 54 00:03:08,981 --> 00:03:10,566 It also contains a lot of iron, 55 00:03:10,691 --> 00:03:13,277 which is crucial to the health of our red blood cells. 56 00:03:13,361 --> 00:03:16,405 And while plants have iron, most of it is a different kind 57 00:03:16,489 --> 00:03:18,616 that doesn't absorb well into the body. 58 00:03:18,699 --> 00:03:20,409 The iron in meat is special, 59 00:03:20,952 --> 00:03:24,080 because it's bound with a compound called heme, 60 00:03:24,163 --> 00:03:28,501 and the only major source of heme iron is animal blood and muscle. 61 00:03:29,252 --> 00:03:33,839 This influx of protein and nutrients may be why our bodies changed. 62 00:03:33,923 --> 00:03:36,884 Smaller stomachs, shorter intestines, and bigger brains. 63 00:03:36,968 --> 00:03:39,637 Some believe that hunting meat is what led our ancestors 64 00:03:39,720 --> 00:03:43,975 to first develop tools, complex language, and social structures. 65 00:03:44,058 --> 00:03:47,270 Meat eating is arguably what made us human. 66 00:03:47,353 --> 00:03:50,481 It is natural, I would say, for humans to like meat. 67 00:03:50,564 --> 00:03:52,149 It's part of our biology. 68 00:03:52,233 --> 00:03:55,945 I think humans have always wanted more meat than they could get. 69 00:03:56,404 --> 00:03:59,282 [narrator] But 10,000 years ago, something major happened. 70 00:03:59,365 --> 00:04:01,826 We learned how to domesticate animals for food. 71 00:04:02,827 --> 00:04:04,704 We bred wild oxen into cows, 72 00:04:04,787 --> 00:04:06,372 wild boars into pigs 73 00:04:06,455 --> 00:04:08,541 and red junglefowls into chickens. 74 00:04:08,624 --> 00:04:11,085 It's one of the most important things in human history: 75 00:04:11,168 --> 00:04:13,004 the domestication of plants and animals. 76 00:04:13,087 --> 00:04:14,255 It changed the world. 77 00:04:14,672 --> 00:04:16,590 [narrator] Farming led to human settlements. 78 00:04:16,674 --> 00:04:18,592 Our population started to climb, 79 00:04:18,676 --> 00:04:20,344 and through selective breeding, 80 00:04:20,428 --> 00:04:23,973 we kept transforming animals to fit our desire for more meat. 81 00:04:24,765 --> 00:04:26,767 And then, starting a century ago, 82 00:04:27,226 --> 00:04:31,647 modern science enabled us to transform these animals like never before. 83 00:04:31,731 --> 00:04:34,358 [man] Farm research has led to the control of disease, 84 00:04:34,442 --> 00:04:37,236 improvement of breeds, advancement of production. 85 00:04:37,528 --> 00:04:38,696 [man 2] And like big business, 86 00:04:38,779 --> 00:04:41,407 there's a serious effort to improve the product. 87 00:04:41,490 --> 00:04:44,577 [narrator] To understand what that looks like, consider the chicken. 88 00:04:44,952 --> 00:04:46,579 Both of these are the same age, 89 00:04:46,662 --> 00:04:50,416 and this one has been on a diet which included an antibiotic. 90 00:04:50,499 --> 00:04:52,418 You notice the difference in size. It's much larger. 91 00:04:52,501 --> 00:04:55,921 Whereas the smaller one here has been on just a normal diet. 92 00:04:56,005 --> 00:05:00,301 You can see a chicken from 1957 compared to a chicken from 2005. 93 00:05:00,843 --> 00:05:03,262 Huge chicken breasts, it's just this monster, 94 00:05:03,346 --> 00:05:06,766 and it's the exact same age as this chicken from 1957, 95 00:05:06,849 --> 00:05:08,726 which looks kind of like a pigeon. 96 00:05:08,809 --> 00:05:11,354 [narrator] Chickens today grow four to five times bigger 97 00:05:11,437 --> 00:05:13,606 thanks to growth-promoting antibiotics, 98 00:05:13,689 --> 00:05:15,566 vitamins, and selective breeding. 99 00:05:15,649 --> 00:05:17,360 [Datar] When you look at that chicken, 100 00:05:17,443 --> 00:05:19,070 you understand that it must be slaughtered 101 00:05:19,153 --> 00:05:20,321 at five weeks of age 102 00:05:20,404 --> 00:05:25,409 because the legs can no longer hold up the mass of its body. 103 00:05:25,493 --> 00:05:29,997 We've kind of reached biological limits with what we can do with whole animals. 104 00:05:31,082 --> 00:05:35,294 [narrator] We're also reaching the limit of how many farm animals can fit on Earth. 105 00:05:35,378 --> 00:05:40,091 If the whole world ate as much meat as these top meat-eating countries, 106 00:05:40,174 --> 00:05:44,553 every square foot of habitable land would have to be used to feed people. 107 00:05:46,263 --> 00:05:48,099 And it still wouldn't be enough space. 108 00:05:48,641 --> 00:05:52,228 And we're already packing most of those animals together as tightly as possible. 109 00:05:53,062 --> 00:05:57,400 According to chicken industry lore, that's all thanks to this woman, 110 00:05:57,483 --> 00:05:58,734 Cecile Steele. 111 00:05:59,777 --> 00:06:00,778 In 1923, 112 00:06:00,861 --> 00:06:04,323 she placed an order for 50 hatchling chickens. 113 00:06:04,407 --> 00:06:07,410 But because of an accidental extra zero on the order form, 114 00:06:08,077 --> 00:06:10,538 she wound up with 500. 115 00:06:10,621 --> 00:06:12,748 Steele decided to keep them. 116 00:06:12,832 --> 00:06:16,544 So she stuffed them into sheds and tried to raise them all at once. 117 00:06:17,420 --> 00:06:19,713 At the time, people didn't really eat chickens. 118 00:06:19,797 --> 00:06:21,715 They just used them for eggs. 119 00:06:21,799 --> 00:06:23,676 But because of that economy of scale, 120 00:06:23,759 --> 00:06:26,637 Steele was able to sell her chickens more cheaply. 121 00:06:26,720 --> 00:06:30,933 The following year, she expanded from 1,000 to 10,000. 122 00:06:31,016 --> 00:06:33,018 [man] Want something special for Sunday dinner? 123 00:06:33,102 --> 00:06:37,022 Chicken, inspected and graded, is now thrifty every day. 124 00:06:37,106 --> 00:06:38,399 Yes, in one generation, 125 00:06:38,482 --> 00:06:41,902 people of this country have doubled their consumption of poultry. 126 00:06:42,528 --> 00:06:46,824 [narrator] Factory farming exploded, and so did our appetite for chicken 127 00:06:46,907 --> 00:06:48,701 and every other kind of meat. 128 00:06:49,660 --> 00:06:51,662 And we invented new ways to eat it. 129 00:06:51,745 --> 00:06:54,540 The 1930s brought us Spam, meat in a can. 130 00:06:55,374 --> 00:06:59,670 In the 1940s, hamburgers took off, made from slaughterhouse scraps. 131 00:07:00,212 --> 00:07:03,215 And the 1980s saw the rise of the chicken nugget. 132 00:07:04,592 --> 00:07:08,721 Eating animals no longer involved seeing anything that looked like an animal. 133 00:07:10,723 --> 00:07:14,602 Animal agribusiness makes it easy for us to distance ourselves 134 00:07:14,685 --> 00:07:19,440 from the reality of who we're eating when we're eating animals. 135 00:07:19,523 --> 00:07:21,400 Many people are uncomfortable eating meat 136 00:07:21,484 --> 00:07:23,819 that actually resembles the animal it once was. 137 00:07:23,903 --> 00:07:26,655 [narrator] Today, the majority of farm animals are grown out of sight 138 00:07:26,739 --> 00:07:29,325 in concentrated feeding lots like this one. 139 00:07:29,408 --> 00:07:33,454 The only reason animals don't get sick from being packed so tightly together 140 00:07:33,537 --> 00:07:35,414 is that they're fed antibiotics. 141 00:07:35,498 --> 00:07:39,418 But decades of news reports show that hasn't always worked. 142 00:07:39,502 --> 00:07:43,547 An estimated two million Americans are affected by Salmonella poisoning annually. 143 00:07:43,631 --> 00:07:45,174 It could happen again. 144 00:07:45,257 --> 00:07:48,552 Another outbreak of deadly food poisoning from tainted meat. 145 00:07:48,636 --> 00:07:49,845 Can't they buy cleaner meat? 146 00:07:50,387 --> 00:07:55,017 That would be the goal, but there's only so clean that you can make the meat. 147 00:07:55,100 --> 00:07:57,228 [in Portuguese] I went to buy meat, and I was scared to buy it. 148 00:07:57,311 --> 00:07:59,939 I even smelled the meat, and I thought the smell was not good. 149 00:08:00,397 --> 00:08:02,483 [narrator] And antibiotics don't work on viruses. 150 00:08:02,566 --> 00:08:03,901 And sometimes, 151 00:08:03,984 --> 00:08:07,112 those viruses jump from factory farm animals to humans, 152 00:08:07,196 --> 00:08:08,572 like mad cow disease, 153 00:08:09,114 --> 00:08:10,032 and swine flu, 154 00:08:10,491 --> 00:08:11,492 and bird flu. 155 00:08:12,034 --> 00:08:17,331 I think people need to wake up to the idea that... animals-- 156 00:08:17,957 --> 00:08:21,877 [stutters] take a very heavy toll on our lives in the environment. 157 00:08:21,961 --> 00:08:25,589 We're about to have ten billion people living on a space 158 00:08:25,673 --> 00:08:30,386 that will require us to grow more food in the next 30 years 159 00:08:30,469 --> 00:08:32,304 than we've grown in all of human history. 160 00:08:33,180 --> 00:08:36,600 [narrator] While meat consumption is now steady in the wealthiest countries, 161 00:08:36,684 --> 00:08:38,978 it's exploding in emerging economies. 162 00:08:39,061 --> 00:08:41,814 [Rozin] What's happening is that [stutters] the 20 percent of the world 163 00:08:41,897 --> 00:08:45,276 that are high meat eaters are getting more and more concerned 164 00:08:45,359 --> 00:08:47,152 about the effect of their meat eating. 165 00:08:47,236 --> 00:08:48,988 And the 80 percent of the world 166 00:08:49,071 --> 00:08:52,283 which is concerned with just getting enough good nutrition 167 00:08:52,366 --> 00:08:53,951 is um... rising. 168 00:08:54,034 --> 00:08:55,494 [Specter] As countries get richer, 169 00:08:55,578 --> 00:08:58,038 and China and India are the most obvious examples, 170 00:08:58,122 --> 00:09:00,165 the middle classes tend to eat like we do. 171 00:09:00,249 --> 00:09:03,002 Meals with meat. They want lots of protein. 172 00:09:03,085 --> 00:09:06,589 [narrator] But meat is one of the least efficient ways to feed people. 173 00:09:06,672 --> 00:09:09,717 Every 100 grams of plant protein fed to a cow 174 00:09:09,800 --> 00:09:13,387 ends up as just four grams of protein in the resulting beef. 175 00:09:13,470 --> 00:09:15,598 For calories, it's even less. 176 00:09:15,681 --> 00:09:21,312 So you have giant swathes of land in the Midwest, in Brazil, in China 177 00:09:21,395 --> 00:09:23,939 that's just devoted to feeding animals, 178 00:09:24,607 --> 00:09:27,484 and it would be nice if they could be devoted to feeding us. 179 00:09:28,193 --> 00:09:30,404 [narrator] The problem, of course, is that we like meat, 180 00:09:30,487 --> 00:09:32,740 and plants don't taste like meat. 181 00:09:33,157 --> 00:09:34,783 But what if they could? 182 00:09:34,867 --> 00:09:38,329 Meat lovers love meat not because it comes from the cadaver of an animal, 183 00:09:38,412 --> 00:09:41,498 but in spite of the fact that it comes from the cadaver of an animal. 184 00:09:44,460 --> 00:09:46,211 [narrator] This is the Impossible Burger. 185 00:09:46,295 --> 00:09:47,796 And this is the Beyond Burger. 186 00:09:48,797 --> 00:09:51,842 They're both plant-based patties trying to compete with meat. 187 00:09:52,760 --> 00:09:54,303 [Brown] The key is very simple. 188 00:09:54,386 --> 00:09:56,138 You have to create... 189 00:09:56,930 --> 00:09:59,308 meat that is uncompromisingly delicious, 190 00:09:59,642 --> 00:10:04,021 delivers as much or better protein and iron and the other nutrients 191 00:10:04,146 --> 00:10:05,689 that people like from meat, 192 00:10:05,773 --> 00:10:07,775 performs in the kitchen, 193 00:10:07,858 --> 00:10:09,943 and is accessible and affordable. 194 00:10:10,527 --> 00:10:13,530 And if you do those things, it's game over. 195 00:10:13,989 --> 00:10:15,407 [narrator] Since the 1980s, 196 00:10:15,491 --> 00:10:19,953 plant-based meat alternatives mostly used soybeans and wheat gluten to mimic meat. 197 00:10:20,037 --> 00:10:22,414 And advertisements, like this one for Quorn, 198 00:10:22,498 --> 00:10:25,084 suggested it could replace meat in consumers' diets, 199 00:10:25,167 --> 00:10:28,253 but they never claimed they tasted the same as meat. 200 00:10:28,337 --> 00:10:30,839 [man] Quorn burgers are a tasty alternative to meat 201 00:10:30,923 --> 00:10:32,091 and very healthy. 202 00:10:32,174 --> 00:10:35,552 And just like other burgers, you can eat them any way you want to. 203 00:10:35,636 --> 00:10:37,054 [narrator] Even the people selling those products 204 00:10:37,137 --> 00:10:39,431 weren't sure how to advertise the taste. 205 00:10:39,515 --> 00:10:40,432 [man] It looks like a turkey. 206 00:10:40,516 --> 00:10:42,810 -It looks like a turkey-- -Will it taste like a turkey? 207 00:10:42,893 --> 00:10:44,770 It should taste a little like a turkey. 208 00:10:44,853 --> 00:10:48,774 The psychological barrier is that most meat lovers expect 209 00:10:48,857 --> 00:10:52,361 any plant-based replacement for meat to suck as meat. 210 00:10:52,444 --> 00:10:55,280 [narrator] And that's still the biggest challenge for these companies, 211 00:10:55,364 --> 00:10:59,618 making something that tastes, smells, and feels like meat. 212 00:10:59,702 --> 00:11:05,207 By far, the most important scientific question in the world right now: 213 00:11:05,290 --> 00:11:06,667 what makes meat delicious? 214 00:11:07,459 --> 00:11:09,169 [narrator] It's a lot harder than you might think. 215 00:11:09,253 --> 00:11:13,674 [Brown] There's not, like, one beefy flavor aroma molecule. 216 00:11:13,757 --> 00:11:17,094 [narrator] To figure out the recipe, food scientists heated up pieces of meat 217 00:11:17,177 --> 00:11:19,930 and collected air samples right above them as they cooked. 218 00:11:20,013 --> 00:11:23,600 [Brown] On the other end of that tube is a little funnel 219 00:11:23,684 --> 00:11:26,061 with someone's nose stuck in it. 220 00:11:26,145 --> 00:11:30,858 And that person, for 45 minutes, is sitting there, sniffing. You know, like... 221 00:11:30,941 --> 00:11:32,943 [sniffs] 222 00:11:33,026 --> 00:11:36,780 [narrator] What they're smelling are the components of what makes meat meaty. 223 00:11:36,864 --> 00:11:38,532 [Brown] The molecules that come out of it smell like 224 00:11:38,615 --> 00:11:40,743 maple syrup, burnt rubber, 225 00:11:40,826 --> 00:11:42,286 freshly struck match... 226 00:11:42,369 --> 00:11:43,495 -dirty diaper, -[baby coos] 227 00:11:43,579 --> 00:11:45,247 mint, lilacs, 228 00:11:45,330 --> 00:11:47,124 sweat, sulfur... 229 00:11:47,207 --> 00:11:50,586 [narrator] But one of the major things that gives red meat its distinct flavor? 230 00:11:50,669 --> 00:11:54,715 It's that special compound found in animals: heme iron. 231 00:11:54,798 --> 00:12:01,180 And in 2015, Impossible Foods patented a way to synthesize heme iron in a lab. 232 00:12:01,263 --> 00:12:04,641 The result is a new generation of plant-based alternatives 233 00:12:04,725 --> 00:12:08,812 that taste, feel, and bleed like meat. 234 00:12:09,396 --> 00:12:11,190 But while their ingredients look wholesome 235 00:12:11,273 --> 00:12:12,775 and they have zero cholesterol, 236 00:12:13,358 --> 00:12:16,987 they have around the same number of calories as an unseasoned beef patty, 237 00:12:17,070 --> 00:12:19,490 similar levels of saturated fat, 238 00:12:19,573 --> 00:12:22,409 and more than five times as much sodium. 239 00:12:22,493 --> 00:12:24,203 These aren't health foods. 240 00:12:24,286 --> 00:12:25,621 They're burgers. 241 00:12:25,704 --> 00:12:27,623 And investors are betting big on them, 242 00:12:27,706 --> 00:12:29,792 from Bill Gates and Richard Branson 243 00:12:29,875 --> 00:12:31,752 to Jay-Z and Katy Perry, 244 00:12:31,835 --> 00:12:33,921 who even dressed up as an Impossible Burger 245 00:12:34,004 --> 00:12:35,714 for the Met Gala after-party. 246 00:12:35,798 --> 00:12:38,550 In May 2019, Beyond Meat celebrated 247 00:12:38,634 --> 00:12:41,428 as it became the first meat alternative company to go public. 248 00:12:41,512 --> 00:12:42,805 And by the end of that day, 249 00:12:42,888 --> 00:12:46,391 the stock price had jumped 163 percent, 250 00:12:46,475 --> 00:12:49,561 something that hadn't happened since the height of the dot com boom. 251 00:12:49,645 --> 00:12:51,063 The plant-meat movement 252 00:12:51,146 --> 00:12:55,025 has the virtue that it's not asking you to make a compromise. 253 00:12:55,108 --> 00:12:59,279 It's able to give you the same experience and you can serve your moral goals. 254 00:12:59,363 --> 00:13:01,406 Now, that's a really good deal... 255 00:13:02,074 --> 00:13:03,242 if you can do it. 256 00:13:04,284 --> 00:13:07,204 [narrator] So if this could be the meat the next generation is eating, 257 00:13:07,996 --> 00:13:09,039 do they like it? 258 00:13:09,998 --> 00:13:11,583 [woman] Do you like veggie burgers? 259 00:13:12,084 --> 00:13:13,210 They're okay. 260 00:13:13,293 --> 00:13:14,837 Never had a veggie burger. 261 00:13:15,337 --> 00:13:17,005 I don't like vegetables. 262 00:13:22,094 --> 00:13:24,930 This one is munchy. I kind of like it. 263 00:13:28,350 --> 00:13:29,476 You like this one? 264 00:13:31,061 --> 00:13:32,104 I like this one. 265 00:13:32,980 --> 00:13:34,356 It has a good taste. 266 00:13:34,940 --> 00:13:37,609 My favorite would probably be this one. 267 00:13:42,197 --> 00:13:45,409 That one tastes to me like... beef. 268 00:13:45,492 --> 00:13:48,370 I would have never really guessed that was a veggie burger 269 00:13:48,453 --> 00:13:50,539 because it tasted just like a real burger. 270 00:13:51,373 --> 00:13:53,208 That does not taste like a hamburger. 271 00:13:55,168 --> 00:13:56,753 [woman] What does it taste like? 272 00:13:58,630 --> 00:13:59,590 Carrots. 273 00:13:59,673 --> 00:14:02,301 I'm so used to eating regular burgers 274 00:14:02,384 --> 00:14:05,470 that it's gonna be kind of hard to adjust to veggie burgers. 275 00:14:06,179 --> 00:14:09,516 [man] What if I told you that your favorite burger, 276 00:14:09,600 --> 00:14:10,809 the one in the middle, 277 00:14:11,476 --> 00:14:13,520 is made entirely of plants? 278 00:14:15,188 --> 00:14:16,523 Uh... 279 00:14:16,607 --> 00:14:19,109 I would never eat this thing in my life again. 280 00:14:20,986 --> 00:14:22,654 [narrator] Changing behavior is hard. 281 00:14:22,738 --> 00:14:25,991 A lot of people just aren't going to give up meat that easily. 282 00:14:26,074 --> 00:14:30,913 [Joy] We have been so deeply habituated to eating animal foods 283 00:14:30,996 --> 00:14:35,792 that for many people, we're not just going to simply lose that craving 284 00:14:35,876 --> 00:14:40,339 because we wake up and recognize that these foods are problematic. 285 00:14:40,422 --> 00:14:41,256 [cow mooing] 286 00:14:41,340 --> 00:14:43,800 [narrator] So some companies are trying a different approach: 287 00:14:43,884 --> 00:14:46,720 making animal meat without killing the animal. 288 00:14:49,973 --> 00:14:52,142 You're looking at chicken cells. 289 00:14:52,726 --> 00:14:53,894 In a few weeks, 290 00:14:53,977 --> 00:14:57,147 they'll be breaded and fried into a nugget like this one. 291 00:14:57,773 --> 00:15:00,651 But these cells aren't growing inside of a chicken. 292 00:15:00,734 --> 00:15:03,612 Cultured meat isn't any different than conventional meat 293 00:15:03,695 --> 00:15:06,907 that we've been eating for tens of thousands of years. 294 00:15:06,990 --> 00:15:08,659 Uh, it's made from an animal. 295 00:15:08,742 --> 00:15:11,161 The only difference is you don't need to kill the animal. 296 00:15:11,244 --> 00:15:13,747 The recipe is a pretty easy one. It's meat. 297 00:15:13,830 --> 00:15:16,500 [narrator] Actually, the recipe's pretty hard. 298 00:15:16,583 --> 00:15:18,585 There are four main components involved. 299 00:15:19,503 --> 00:15:21,004 The first is a cell culture, 300 00:15:21,088 --> 00:15:24,257 a tiny tissue sample taken from the body of a live animal. 301 00:15:25,092 --> 00:15:26,593 Then there's the scaffold. 302 00:15:26,677 --> 00:15:30,389 That's the surface that the replicating muscle cells stick to. 303 00:15:30,472 --> 00:15:33,767 To grow, the cells also need a growth medium, 304 00:15:33,850 --> 00:15:37,354 the soup that provides proteins, vitamins, sugars, and hormones 305 00:15:37,437 --> 00:15:39,731 to feed the cells as they grow and divide. 306 00:15:40,399 --> 00:15:42,275 And finally, a bioreactor, 307 00:15:42,359 --> 00:15:46,113 the temperature-controlled environment that intakes fresh nutrients 308 00:15:46,196 --> 00:15:47,698 and outputs waste. 309 00:15:47,781 --> 00:15:51,451 You can think of it like an artificial body for the meat to grow in. 310 00:15:51,535 --> 00:15:52,661 In about nine weeks, 311 00:15:52,744 --> 00:15:57,165 this goes from a tiny group of cells to an edible chunk of meat. 312 00:15:58,000 --> 00:15:59,459 Early research suggests 313 00:15:59,543 --> 00:16:02,671 that this process could use about half the energy of beef production, 314 00:16:02,754 --> 00:16:04,673 a tiny fraction of the land and water, 315 00:16:04,756 --> 00:16:05,757 and greatly reduce 316 00:16:05,841 --> 00:16:07,467 greenhouse-gas emissions. 317 00:16:07,551 --> 00:16:08,969 But the key question: 318 00:16:09,553 --> 00:16:10,887 does it taste any good? 319 00:16:11,805 --> 00:16:16,643 In 2013, the world got to watch the first lab-grown meat taste test, 320 00:16:16,727 --> 00:16:18,437 televised on BBC. 321 00:16:18,520 --> 00:16:21,732 They said it kind of tasted like meat. 322 00:16:21,815 --> 00:16:23,817 There's quite some intense taste. 323 00:16:23,900 --> 00:16:25,986 It's close to meat. 324 00:16:26,069 --> 00:16:27,738 It's not that juicy. 325 00:16:28,238 --> 00:16:30,824 [narrator] And another big difference is that hamburger 326 00:16:30,907 --> 00:16:33,869 cost $330,000 to make, 327 00:16:33,952 --> 00:16:35,495 engineered by this guy, 328 00:16:35,620 --> 00:16:37,873 Dutch pharmacologist Mark Post. 329 00:16:37,956 --> 00:16:41,626 Only six years later, Post's meat start-up, Mosameat, 330 00:16:41,710 --> 00:16:47,090 says it cut production costs by 99.997 percent 331 00:16:47,174 --> 00:16:49,217 to just ten dollars a burger. 332 00:16:49,301 --> 00:16:51,595 Right now, dozens of cell-based meat start-ups 333 00:16:51,678 --> 00:16:54,014 are racing to be the first ones to go to market 334 00:16:54,097 --> 00:16:56,433 from the Netherlands to Israel to Singapore, 335 00:16:56,516 --> 00:16:59,728 but none of them have perfected the recipe... yet. 336 00:16:59,811 --> 00:17:02,981 The first problem is sourcing the growth medium. 337 00:17:03,065 --> 00:17:06,401 Right now, the liquid used is fetal bovine serum. 338 00:17:06,485 --> 00:17:08,737 And that's a nicer way of saying blood taken 339 00:17:08,820 --> 00:17:11,948 from the heart of an unborn cow, immediately killing it. 340 00:17:12,574 --> 00:17:16,578 Cell-based meat companies are working toward a plant-based replacement, 341 00:17:16,661 --> 00:17:20,123 but experts aren't sure when or even if that could happen. 342 00:17:20,665 --> 00:17:22,417 Another problem is structure. 343 00:17:22,501 --> 00:17:26,421 So, ground meat is that hamburger, that ground chicken nugget, 344 00:17:26,505 --> 00:17:28,256 and the structured meat is that steak 345 00:17:28,340 --> 00:17:31,593 and that nice, fatty piece of bluefin tuna. 346 00:17:31,676 --> 00:17:34,638 The ground stuff is a lot easier. The structured stuff is a lot harder. 347 00:17:35,222 --> 00:17:36,890 [narrator] That requires delivering nutrients 348 00:17:36,973 --> 00:17:39,059 to cells at the center of the meat 349 00:17:39,142 --> 00:17:41,895 like blood vessels do in an animal's body. 350 00:17:41,978 --> 00:17:45,482 Researchers are experimenting with different techniques to do that, 351 00:17:45,565 --> 00:17:48,443 like using the vein structure of a spinach leaf, 352 00:17:48,527 --> 00:17:51,029 but experts think we're at least a decade away 353 00:17:51,113 --> 00:17:54,574 from pulling off something that resembles a big juicy steak. 354 00:17:55,283 --> 00:17:57,661 And then there's the yuck factor. 355 00:17:58,495 --> 00:18:00,413 In a 2016 survey, 356 00:18:00,497 --> 00:18:02,624 many Americans said they weren't interested 357 00:18:02,707 --> 00:18:05,252 in regularly eating meat grown in a lab. 358 00:18:06,169 --> 00:18:07,879 And some people won't even try it. 359 00:18:07,963 --> 00:18:11,383 So you still like the idea of a piece of meat grown in a lab? 360 00:18:11,466 --> 00:18:14,261 -No, it-- It almost makes me vomit. -[host laughs] 361 00:18:14,344 --> 00:18:15,679 [man in Italian] Why not try a new experience? 362 00:18:15,762 --> 00:18:16,972 [man 2] No, no, no. 363 00:18:17,055 --> 00:18:19,307 -If I paid you 200 euros? -No, not if you paid me. 364 00:18:19,391 --> 00:18:20,851 -1,000 euros? -No, no. 365 00:18:20,934 --> 00:18:25,814 [in English] It doesn't sound appealing anyway, man-made test-tube burger. No. 366 00:18:25,897 --> 00:18:29,651 [narrator] A lot of people find the idea of cell-based meat disgusting, 367 00:18:29,734 --> 00:18:32,779 but a lot of people find different meats disgusting too. 368 00:18:32,863 --> 00:18:35,073 Disgust is very cultural. It's not innate. 369 00:18:35,157 --> 00:18:38,243 Every culture has selected some animal things to eat. 370 00:18:38,326 --> 00:18:41,621 There are a lot of cultural differences in what's disgusting. 371 00:18:42,289 --> 00:18:43,790 [narrator] In many languages, 372 00:18:43,874 --> 00:18:45,876 the names used to describe different meats 373 00:18:45,959 --> 00:18:47,919 can make eating those animals easier. 374 00:18:48,003 --> 00:18:52,799 Language can bring us closer to or disconnect us from a reality. 375 00:18:52,883 --> 00:18:55,677 When we look at the language that we use around meat, 376 00:18:55,760 --> 00:18:57,512 for example, it's very interesting. 377 00:18:57,596 --> 00:19:02,309 We camouflage the actual source of the meat. 378 00:19:02,392 --> 00:19:05,812 [Rozin] So we don't say cow. We say we're eating beef. 379 00:19:05,896 --> 00:19:08,440 And we don't say we're eating pig. We're eating pork. 380 00:19:08,523 --> 00:19:11,568 When you start thinking about a pig when you eat a pork chop, 381 00:19:11,651 --> 00:19:13,361 you're on the way to being a vegetarian. 382 00:19:13,778 --> 00:19:16,656 [narrator] And cell-based meat might just have a naming problem. 383 00:19:16,740 --> 00:19:20,911 Lab-grown, test-tube, and in vitro don't sound especially appetizing. 384 00:19:20,994 --> 00:19:23,705 That's why these companies have been fighting for names like 385 00:19:23,788 --> 00:19:27,125 cultured, clean, or cell-based meat. 386 00:19:27,876 --> 00:19:29,961 But some people are fighting back. 387 00:19:30,462 --> 00:19:33,924 In 2018, Missouri became the first state in the US 388 00:19:34,007 --> 00:19:37,344 to ban food products from being sold under the name meat 389 00:19:37,427 --> 00:19:39,554 unless they came from a slaughtered animal, 390 00:19:39,638 --> 00:19:42,140 punishable by up to a year in prison. 391 00:19:42,766 --> 00:19:43,850 That same year, 392 00:19:43,934 --> 00:19:46,770 the European Union proposed banning meat alternatives 393 00:19:46,853 --> 00:19:49,231 from advertising themselves with words like 394 00:19:49,314 --> 00:19:51,816 steak, sausage, or burger. 395 00:19:52,484 --> 00:19:55,028 And many people who do the work of raising farm animals 396 00:19:55,111 --> 00:19:58,657 feel passionately that cell-based meat isn't the same thing. 397 00:19:58,740 --> 00:20:01,701 Consumers, when I travel, tell me all the time 398 00:20:01,785 --> 00:20:04,454 that when they purchase product at the grocery store, 399 00:20:04,537 --> 00:20:07,040 they think of what we're doing as families, 400 00:20:07,123 --> 00:20:09,125 on the land, taking care of the land, 401 00:20:09,209 --> 00:20:11,169 taking care of those cattle every day. 402 00:20:11,253 --> 00:20:13,880 They don't think about... um... 403 00:20:13,964 --> 00:20:17,676 somebody putting a group of cells together and growing a new product. 404 00:20:17,759 --> 00:20:18,843 That's not beef. 405 00:20:19,344 --> 00:20:21,221 [narrator] But today, most of our food 406 00:20:21,304 --> 00:20:23,431 isn't going straight from the land to the table. 407 00:20:24,015 --> 00:20:27,310 In fact, much of what we eat started in a lab. 408 00:20:27,978 --> 00:20:29,104 Like anything... 409 00:20:29,479 --> 00:20:31,314 yogurt, cereal... 410 00:20:31,398 --> 00:20:32,232 Gatorade... 411 00:20:32,774 --> 00:20:33,733 applesauce. 412 00:20:34,234 --> 00:20:37,529 All that stuff for commercial use started off in a lab. 413 00:20:38,196 --> 00:20:40,365 But where something starts isn't where it ends. 414 00:20:40,448 --> 00:20:43,368 It's not gonna be made in a lab. It's gonna be made in a manufacturing facility. 415 00:20:43,451 --> 00:20:46,830 [narrator] And the animals we eat have been engineered over millennia 416 00:20:46,913 --> 00:20:50,583 through selective breeding, artificial insemination, growth hormones, 417 00:20:50,667 --> 00:20:52,711 24-hour climate-controlled warehouses, 418 00:20:52,794 --> 00:20:55,505 fortified feed, and drugs. 419 00:20:56,381 --> 00:21:00,844 In the US, more than 70 percent of all antibiotics sold each year 420 00:21:00,927 --> 00:21:02,595 now go to farm animals. 421 00:21:03,263 --> 00:21:07,350 Now, people think of corn or beef as natural. 422 00:21:07,434 --> 00:21:11,187 They're not natural, of course. They're highly domesticated products. 423 00:21:11,271 --> 00:21:14,441 An enormous amount of human processing is going in there. 424 00:21:15,191 --> 00:21:18,903 [narrator] Technology enabled us to eat animals the way we do today, 425 00:21:18,987 --> 00:21:21,114 and new technology might be the only thing 426 00:21:21,197 --> 00:21:24,367 that can help us satisfy our craving for meat in the future. 427 00:21:27,037 --> 00:21:30,707 The reason why we're here today is because animal products are so awesome. 428 00:21:30,832 --> 00:21:33,460 But they change the surface of our Earth. 429 00:21:33,960 --> 00:21:35,962 It's creating epidemic viruses. 430 00:21:36,046 --> 00:21:38,590 It's threatening how useful our antibiotics are. 431 00:21:38,673 --> 00:21:41,468 What's going to change the market is what always changes the market: 432 00:21:41,551 --> 00:21:43,928 money and a product that people like. 433 00:21:44,679 --> 00:21:46,431 This is just the story of technology, 434 00:21:46,514 --> 00:21:49,476 and I know people don't like to think of food as technology, but it is. 435 00:21:50,101 --> 00:21:53,146 The idea of meat is a lot more... 436 00:21:53,229 --> 00:21:57,442 emotionally fraught than the idea of a smartphone. 437 00:21:57,859 --> 00:22:00,487 Right? Meat is more than just a taste of the animal. 438 00:22:00,570 --> 00:22:05,241 Right? Meat is identity, it is culture, it is the stories we tell ourselves. 439 00:22:05,325 --> 00:22:06,409 [narrator] For decades, 440 00:22:06,493 --> 00:22:09,746 we've dreamed of a future when we could have meat without animals. 441 00:22:09,829 --> 00:22:12,707 [man in Italian] No head... no wings. 442 00:22:12,791 --> 00:22:14,793 It's all meat! 443 00:22:16,044 --> 00:22:17,337 [machine buzzes] 444 00:22:18,046 --> 00:22:19,089 Oh! 445 00:22:19,172 --> 00:22:21,508 [man in English] We no longer enslave animals for food purposes. 446 00:22:21,591 --> 00:22:24,677 You've seen something as fresh and tasty as meat, 447 00:22:24,761 --> 00:22:26,388 but inorganically materialized, 448 00:22:26,471 --> 00:22:28,890 out of patterns used by our transporters. 449 00:22:29,599 --> 00:22:33,228 [narrator] Back in 1932, even Winston Churchill predicted... 450 00:22:33,770 --> 00:22:36,606 "We shall escape the absurdity of growing a whole chicken 451 00:22:36,689 --> 00:22:38,733 in order to eat the breast or wing, 452 00:22:38,817 --> 00:22:42,278 by growing these parts separately under a suitable medium." 453 00:22:42,362 --> 00:22:44,280 Just think about the modern world. 454 00:22:44,364 --> 00:22:47,784 How we've conquered problems in water purification. 455 00:22:47,867 --> 00:22:49,786 We have satellites. 456 00:22:49,869 --> 00:22:53,415 Why can't we do this? And the answer is we probably can. 457 00:22:56,126 --> 00:22:58,128 [theme music playing]