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— CH. 1 · INTRODUCTION —

Chicken as food

10 min listen · Ch. 1 of 6
6 sections
  • Chicken is the most common type of poultry on Earth, and the second most consumed meat in the world. There were an estimated 19 billion chickens alive in 2011 alone, more than two for every person on the planet. That staggering abundance is no accident. It is the result of thousands of years of cultivation, selective breeding, and industrial transformation that turned a jungle bird from the northern Indian subcontinent into the centerpiece of cuisines on every continent.

    How did a meat once so expensive that Americans in the 1800s considered it a luxury for the wealthy become the defining food of the modern fast food era? What does the chicken on your plate actually contain, from the cut on the bone to the chemistry in the feed? And what happens between the farm and the abattoir that most eaters never see?

    This documentary follows chicken from its ancient origins through its anatomy, its industrial production, and the serious health questions that surround it today.

  • The modern chicken descends from red junglefowl hybrids, crossed with grey junglefowl, first raised thousands of years ago in the northern parts of the Indian subcontinent. By around 600 BC, Babylonian carvings already depicted chicken as a meat source, placing its culinary history well before the rise of most modern cuisines.

    Throughout the Middle Ages, chicken was one of the most available meats across the Eastern Hemisphere. Capons, pullets, and hens each occupied different roles in medieval kitchens. Chicken was a central ingredient in blancmange, a stew of chicken and fried onions cooked in milk and seasoned with spices and sugar.

    In the United States during the 1800s, chicken carried a very different status. It was sought by the wealthy precisely because it was so costly as to be an uncommon dish. That reality shifted during World War II, when shortages of beef and pork pushed chicken consumption sharply upward in the U.S. In Europe, a different crisis drove the change: in 1996, consumption of chicken overtook beef and veal, linked directly to public awareness of bovine spongiform encephalopathy, the disease commonly known as mad cow disease.

    By 2021, the scale of global chicken production had become almost incomprehensible. Of the 357 million tonnes of meat produced that year, chicken represented more than half the increase since 2000, and chicken meat was the single most produced type of meat in the world, just ahead of pig meat.

  • Cornish Cross chickens, one of the most common modern meat breeds in the United States, are bred with a single priority: the ratio of feed consumed to meat produced. White Rock chickens share that commercial dominance in the American market. These are not the chickens of earlier centuries.

    Chickens raised specifically for food are called broilers, and in the U.S. they are butchered at a remarkably young age. Modern Cornish Cross hybrids reach the fryer stage in as little as 8 weeks, and are kept no longer than 12 weeks for roasting birds. The speed of that turnaround reflects decades of selective breeding pressure.

    Capons, which are castrated cocks, grow more slowly but produce more meat with a higher fat content. That combination made them a prized delicacy in the Middle Ages, and they retain a culinary reputation built on that richness. The contrast between a broiler slaughtered at 8 weeks and a capon raised for flavor illustrates a tension that runs through the entire modern chicken industry: speed and volume on one side, quality and tradition on the other.

  • Breast meat is white, relatively dry, and comes in two segments: the breast itself and the tenderloin, formally called the pectoralis minor, which lies between the breast meat and the ribs. In the United States, strips sold as tenders can be either true tenderloins or strips cut from the breast. In the United Kingdom, the strips of pectoralis minor carry the name chicken mini-fillets.

    The leg divides into the drumstick below and the thigh above, both dark meat. Wings break into three segments: the drumette, the flat middle section containing two bones, and the tip, which is usually discarded or used for stock. Buffalo wings, served as bar food across the U.S., come from that wing section.

    Beyond these familiar cuts, the chicken offers parts that are routine in some cultures and invisible in others. Chicken feet, eaten mainly for the skin and cartilage, are common fare in the Caribbean, China, and Vietnam. In China, the head is split and the brain is eaten as a delicacy. Oysters, the small rounds of dark meat near the thigh on the back of the bird, are considered a delicacy by those who know to look for them. The pygostyle and testicles are commonly eaten in East Asia and parts of Southeast Asia.

    The by-products extend even further. Blood is congealed into disc-like cakes for soup dishes across many Asian countries. Schmaltz, rendered chicken fat, appears in various dishes. In Brazilian churrascos, chicken hearts are a recognized delicacy. Chicken neck stuffed with filling becomes helzel among Ashkenazi Jews, while chicken neck prepared with black pepper, garlic powder, pineapple juice, soy sauce, cheese, butter, and minced garlic is an iconic dish of Nueva Ecija in the Philippines.

  • Raw chicken breast delivers 22 grams of protein per 100 grams, with only 2 grams of fat. The same portion of raw beef flank steak contains 20 grams of protein and 9 grams of fat. Chicken also contains roughly two to three times as much polyunsaturated fat as most types of red meat when compared by weight percentage. These figures underpin the widespread claim that chicken is healthier than red meat, and the comparison holds for unskinned cuts because the fat in chicken concentrates heavily on the skin rather than through the meat itself.

    The picture grows more complicated when industrial production enters the frame. A 2013 study by the Johns Hopkins School of Public Health found that 70% of U.S. chicken samples from producers that did not prohibit the feed additive roxarsone had inorganic arsenic levels exceeding FDA safety limits. Roxarsone is an organoarsenic compound routinely administered in factory farming to control stomach pathogens and promote growth. It partially decomposes into inorganic arsenic in the flesh and feces of the birds. By September 2013, FDA approval for roxarsone and two other arsenic poultry drugs was voluntarily withdrawn by manufacturers. The final arsenic drug still in use, nitarsone, was banned at the end of 2015.

    Antibiotic resistance presents a parallel concern. A study by the Translational Genomics Research Institute found that nearly half of meat and poultry in U.S. grocery stores was contaminated with Staphylococcus aureus, and more than half of those bacteria were resistant to antibiotics. The FDA has found that more than 25% of retail chicken in the United States is resistant to five or more different classes of antibiotic treatment drugs. An estimated 90 to 100% of conventional chicken carries at least one form of antibiotic-resistant microorganism. Organic chicken shows a lower incidence, at 84%.

    Fecal contamination adds a third dimension to the safety profile. A 2012 survey by the Physicians Committee for Responsible Medicine found that 48% of chicken samples across the United States contained fecal matter. The contamination follows a clear path: chickens in commercial operations spend their lives in contact with manure mixed into bedding material. During transport to the abattoir, crates are stacked 5 to 10 rows high, and feces from upper levels rain down onto birds below. High-speed processing equipment at the abattoir is not designed to remove fecal contamination embedded in the membranes between skin and muscle, and chemical sprays only partially address bacterial load.

  • In the United Kingdom, chickens slaughtered before 28 days of age are marketed as poussin. In the United States, the marketing categories track size and intended cooking method. Fryers weigh 2.5 to 4 pounds dressed and reach that size in about 7 weeks. Roasters, the largest chickens commonly sold, weigh 6 to 8 pounds and are 3 to 5 months old. The names reflect the physics of heat transfer: as bird size increases, volume grows faster than surface area, so smaller birds suit fast high-heat methods like frying, while larger birds require slower roasting to cook through without burning the outside.

    The safe minimum cooking temperature recommended by the U.S. Department of Health and Human Services is 165 degrees Fahrenheit, sufficient to kill Salmonella and parasites. Japan maintains a different tradition: torisashi is sliced raw chicken served in sashimi style, and toriwasa is lightly seared on the outside while the inside remains raw.

    For frozen storage, uncooked whole chicken holds quality for up to 12 months. Uncooked parts keep for 9 months. Giblets are best used within 3 to 4 months, and cooked chicken within 4 months. One visible side effect of freezing is bone darkening near the joints, caused by pigment seeping through the porous bones of young poultry into surrounding tissue during freeze-thaw cycles. The phenomenon is safe but commonly mistaken for spoilage.

    Worldwide, fast food chains built entirely around poultry include KFC operating globally, Red Rooster in Australia, Hector Chicken in Belgium, and CFC in Indonesia. Since the latter half of the 20th century, prepared chicken became a staple of fast food, and those menus now reach billions of customers every year.

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Common questions

What is the most common type of poultry in the world and how many chickens exist?

Chicken is the most common type of poultry in the world. The United Nations estimated there were 19 billion chickens on Earth in 2011, outnumbering humans more than two to one.

Where did the modern chicken originally come from?

The modern chicken descends from red junglefowl hybrids crossed with grey junglefowl, first raised thousands of years ago in the northern parts of the Indian subcontinent. Chicken as a meat has been depicted in Babylonian carvings from around 600 BC.

Why did chicken overtake beef in Europe in 1996?

In 1996, European consumption of chicken overtook that of beef and veal, linked to consumer awareness of bovine spongiform encephalopathy, commonly known as mad cow disease.

What is roxarsone and why was it banned in chicken production?

Roxarsone is an organoarsenic feed additive used in factory farming to control stomach pathogens and promote growth in chickens. A 2013 Johns Hopkins School of Public Health study found that 70% of U.S. chicken samples from producers that allowed roxarsone exceeded FDA inorganic arsenic safety limits. FDA approval for roxarsone and two other arsenic poultry drugs was voluntarily withdrawn by manufacturers in September 2013, and the final arsenic drug, nitarsone, was banned at the end of 2015.

What percentage of retail chicken in the US contains antibiotic-resistant bacteria?

More than 25% of retail chicken in the United States is resistant to five or more different classes of antibiotic treatment drugs, according to the FDA. An estimated 90 to 100% of conventional chicken contains at least one form of antibiotic-resistant microorganism, while organic chicken has a lower incidence at 84%.

What is the safe minimum cooking temperature for chicken recommended by US health authorities?

The U.S. Department of Health and Human Services recommends a minimum cooking temperature of 165 degrees Fahrenheit for chicken to prevent foodborne illness from bacteria and parasites including Salmonella.

All sources

40 references cited across the entry

  1. 3NewsHow many chickens on Earth?Fareed Zakaria — 3 August 2011
  2. 7Chicken Husbandry in Late-Medieval Eastern England: c. 1250-1400Philip Slavin — Yale University — 2009
  3. 8BookThe Art of Cookery in the Middle AgesTerence Scully — The Boydell Press — 1995
  4. 9BookWorld of a Slave: Encyclopedia of the Material Life of Slaves in the United StatesTwitty, Michael W. — Greenwood — 2011
  5. 10NewsTrembling Before BlancmangeTamar Adler — 26 May 2016
  6. 17NewsPinas Sarap recipe: How to make Chicken Neck TiniimJashley Ann Cruz — GMA Integrated News — November 21, 2022
  7. 19Chicken StockAlton Brown
  8. 25JournalRoxarsone, inorganic arsenic, and other arsenic species in chicken: a U.S.-based market basket sampleKeeve E. Nachman et al. — 1 July 2013
  9. 27NewsFDA Response to Citizen Petition on Arsenic-based Animal DrugsU.S. Food and Drug Administration — 20 September 2011
  10. 28NewsFDA Announces Pending Withdrawal of Approval of NitarsoneU.S. Food and Drug Administration — 1 April 2015
  11. 31Retail Meat ReportFood and Drug Safety Administration — 2012
  12. 32JournalComparison of ESBL contamination in organic and conventional retail chicken meatJames Cohen Stuart et al. — 15 March 2012
  13. 33JournalCharacterization of extended-spectrum cephalosporin-resistant Salmonella enterica serovar Heidelberg isolated from food animals, retail meat, and humans in the United States 2009J. P. Folster et al. — 1 July 2012
  14. 34Fecal Contamination in Retail Chicken ProductsThe Physicians Committee for Responsible Medicine — April 2012
  15. 35Safe Minimum Cooking TemperaturesU.S. Department of Health & Human Services
  16. 37NewsChicken adoboChris Prosperi — WVIT — January 26, 2024
  17. 40JournalFood Safety BasicsGarden-Robinson Julie — January 2012