Inuit diet

Inuit elders eating Maktaaq.

Inuit consume a diet of foods that are fished, hunted, and gathered locally.

According to Edmund Searles in his article "Food and the Making of Modern Inuit Identities," they consume this type of diet because a mostly meat diet is "effective in keeping the body warm, making the body strong, keeping the body fit, and even making that body healthy".[1]

Food sources

Hunting practices

Harpon or unaaq MHNT

There has been a decline of hunting partially due to the fact that young people lack the skills to survive off the land. They are no longer skilled in hunting like their ancestors and are growing more accustomed to the Qallunaat ("white people") food that they receive from the south. The high costs of hunting equipment—snowmobiles, rifles, sleds, camping gear, gasoline, and oil—is also causing a decline in families who hunt for their meals.[8]

An Inuit hunter skinning a ringed seal
Walrus hunting
Bowhead whale (Balaena mysticetus), caught in an Inuit subsistence whale hunt in Igloolik, Nunavut in 2002

Nutrition

Caribou meat from hunt. Greenland

Because the climate of the Arctic is ill-suited for agriculture and lacks forageable plant matter for much of the year, the traditional Inuit diet is lower in carbohydrates and higher in fat and animal protein compared to the global average. When carbohydrate intake is inadequate for total energy requirements, protein is broken down in the liver through gluconeogenesis and utilized as an energy source. Inuit studied in the 1970s were found to have abnormally large livers, presumably to assist in this process. Their urine volumes were also high, a result of additional urea which the body uses to purge waste products from gluconeogenesis.[9] However, in multiple studies the traditional Inuit diet has not been shown to be a ketogenic diet.[10][11][12][13] Not only have multiple researchers been unable to detect any evidence of ketosis resulting from the traditional Inuit Diet, but the ratios of fatty-acid to glucose were observed to be well below the generally accepted level of ketogenesis.[10][11][12][13]

Inuit actually consume more carbohydrates than most nutritionists have assumed.[14] Because Inuit frequently eat their meat raw and fresh, or freshly frozen, they can obtain more carbohydrates from their meat, as dietary glycogen, than Westerners can.[14][15] The Inuit practice of preserving a whole seal or bird carcass under an intact whole skin with a thick layer of blubber also permits some proteins to ferment, or hydrolyze, into carbohydrates.[14] Furthermore, the blubber, organs, muscle and skin of the marine mammals that Inuit eat have significant glycogen stores, which assist those animals when oxygen is depleted on prolonged dives.[16][17][18] For instance, when blubber is analyzed by direct carbohydrate measurements, it has been shown to contain as much as 8—30% carbohydrates.[17] While postmortem glycogen levels are often depleted through the onset of rigor mortis, marine mammals have a much delayed onset of rigor mortis, even in warm conditions, presumably due to the high content of oxymyoglobin in the muscle that may permit aerobic metabolism to continue slowly for some time after the death of the animal.[17][19] Additionally, in cold conditions, glycogen's depletion is halted at -18 °C (-0.4 °F) and lower temperatures in comminuted meat.[20][21]

Traditional Inuit diets derive approximately 50% of their calories from fat, 30-35% from protein and 15-20% of their calories from carbohydrates, largely in the form of glycogen from the raw meat they consumed.[22][23] This high fat content provides valuable energy and prevents protein poisoning, which historically was sometimes a problem in late winter when game animals grew lean through winter starvation. It has been suggested that because the fats of the Inuit's wild-caught game are largely monounsaturated and rich in omega-3 fatty acids, the diet does not pose the same health risks as a typical Western high-fat diet.[24] However, actual evidence has shown that Inuit have a similar prevalence of coronary artery disease as non-Inuit populations and they have excessive mortality due to cerebrovascular strokes, with twice the risk to that of the North American population.[25][26] Indeed the cardiovascular risk of this diet is so severe that the addition of a more standard American diet has reduced the incidence of mortality in Inuit population.[27] Furthermore, fish oil supplement studies have failed to support claims of preventing heart attacks or strokes.[28][29][30]

Vitamins and minerals which are typically derived from plant sources are nonetheless present in most Inuit diets. Vitamins A and D are present in the oils and livers of cold-water fishes and mammals. Vitamin C is obtained through sources such as caribou liver, kelp, whale skin, and seal brain; because these foods are typically eaten raw or frozen, the vitamin C they contain, which would be destroyed by cooking, is instead preserved.[31]

Eating habits and food preparation

Searles defines Inuit food as mostly "eaten frozen, raw, or boiled, with very little mixture of ingredients and with very few spices added."[1] Some preparations include:

One common way to eat the meat hunted is frozen. Many hunters will eat the food that they hunt on location where they found it. This keeps their blood flowing and their bodies warm. One peculiar custom of eating meat at the hunting site pertains to fish. In Overland to Starvation Cove: A History, Heinrich Klutschak explains the custom: "...no fish could be eaten in a cooked state on the spot where caught but could only be enjoyed raw; only when one is a day's march away from the fishing site is it permitted to cook the fish over the flame of a blubber lamp."[32]

Inuit only eat two main meals a day, but it is common to eat many snacks every hour.[32] Customs among Inuit when eating and preparing food are very strict and may seem odd for people of different cultures.[32]

When eating a meal, Inuit place large slabs of meat, blubber, and other parts of the animal on a piece of metal, plastic, or cardboard on the floor.[1] From here, anyone in the house is able to cut off a piece of meat. At these meals, no one is obliged to join in the meal; Inuit eat only when hungry.[1] Sometimes, though, meals are announced to the whole camp. A woman does this by the shout of "Ujuk!" which means "cooked meat".[32]

After a hunt, the eating habits differ from normal meals.[33] When a seal is brought home, the hunters quickly gather around it to receive their pieces of meat first. This happens because the hunters are the coldest and hungriest among the camp and need the warm seal blood and meat to warm them.[33] The seal is cut in a specific way directly after a hunt. Borré explains the cutting of the seal is this way "one of the hunters slits the abdomen laterally, exposing the internal organs. Hunters first eat pieces of liver or they use a tea cup to gather some blood to drink."[33] At this time, hunters may also chop up pieces of fat and the brain to mix together and eat with meat.[33]

Women and children are accustomed to eating different parts of the seal because they wait until the hunters are done eating. Intestines are the first thing to be chosen and then any leftover pieces of the liver are consumed.[33] Finally, ribs and backbone are eaten and any remaining meat is distributed among the camp.[33]

Food sharing in the community

Inuit are known for their practice of food sharing, a form of food distribution where one person catches the food and shares with the entire community. Food sharing was first documented among the Inuit in 1910 when a little girl decided to take a platter around to four neighboring families who had no food of their own.[34]

Sharing of frozen, aged walrus meat among Inuit families.

According to Uqalurait: An Oral History of Nunavut, "food sharing was necessary for the physical and social welfare of the entire group."[7] Younger couples would give food from their hunt to the elders, most often their parents, as a sign of respect. Food sharing was not only a tradition, but also a way for families to make bonds with one another. Once you shared food with someone, you were in a "lifelong partnership" with them.[7]

Inuit often are relentless in making known that they are not like Qallunaat in the sense that they do not eat the same food and they are communal with their food. Qallunaat believe that the person who purchases the food is the owner of the food and is free to decide what happens to the food. Searles describes the Inuit perspective on food by saying that "in the Inuit world of goods, foods as well as other objects associated with hunting, fishing, and gathering are more or less communal property, belonging not to individuals but to a larger group, which can include multiple households." Food in an Inuit household is not meant to be saved for the family who has hunted, fished, gathered, or purchased it, but instead for anyone who is in need of it. Searles and his wife were visiting a family in Iqaluit and he asked for permission to have a cup of orange juice. This small gesture of asking was taken as offensive because Inuit do not consider food belonging to one person.[1]

Perceived benefits and beliefs of the diet

Arctic char fishing

The Inuit believe that their diet has many benefits over the western Qallunaat food. They are adamant about proving that their diet will make one stronger, warmer, and full of energy.

One example is the drinking of seal blood. When interviewing an Inuit elder, Searles was told that "Inuit food generates a strong flow of blood, a condition considered to be healthy and indicative of a strong body."[1] After the consumption of seal blood and meat, one could look at their veins in the wrist for proof of the strength that Inuit food provides.[1] Borré states that "seal blood is seen as fortifying human blood by replacing depleted nutrients and rejuvenating the blood supply, it is considered a necessary part of the Inuit diet."[33]

Inuit also believe that their raw meat diet keeps them warmer and stronger.[35] They say that raw meat takes effect on one's body when eaten consistently.[35] One Inuk, Oleetoa, who ate a combination of "Qallunaat" and Inuit food, told of a story of his cousin Joanasee who ate a diet consisting of mostly raw Inuit food. The two compared their strengths, warmth, and energy and found that Joanasee benefited most based on his diet.[1]

Inuit choose their diet based on four concepts, according to Borré: "the relationship between animals and humans, the relationship between the body and soul and life and health, the relationship between seal blood and Inuit blood, and diet choice." Inuit are especially spiritual when it comes to the customs of hunting, cooking, and eating. The Inuit belief is that the combination of animal and human blood in one's bloodstream creates a healthy human body and soul.[33]

Hunting beliefs

One particular belief that Inuit strongly believe in is the relationship between seal and Inuit. According to Inuit hunters and elders, hunters and seals have an agreement that allows the hunter to capture and feed from the seal if only for the hunger of the hunter's family. Borré explains that through this alliance "both hunter and seal are believed to benefit: the hunter is able to sustain the life of his people by having a reliable source of food, and the seal, through its sacrifice, agrees to become part of the body of the Inuit."[33]

Inuit are under the belief that if they do not follow the alliances that their ancestors have laid out, the animals will disappear because they have been offended and will cease to reproduce.[33]

As saltwater animals, seals are always considered to be thirsty and are therefore offered a drink of fresh water as they die. This is shown as a sign of respect and gratitude toward the seal and its sacrifice. This offering is also done to please the spirit Sedna to ensure food supply.[7]

Healing beliefs

Borré tells of a time when she saw an Inuit woman fall ill who blamed her sickness on the lack of seal in her diet. Once receiving seal meat, the woman felt better within hours and said that her quick recovery was due to the consumption of seal meat and blood. Borré experienced this many times among many different members of the group and they all attributed their sickness to the lack of Inuit food.[33]

See also

References

  1. 1 2 3 4 5 6 7 8 9 10 Searles, Edmund. "Food and the Making of Modern Inuit Identities." Food & Foodways: History & Culture of Human Nourishment 10 (2002): 55–78.
  2. ↑ Kuhnlein, Harriet (1991) [1991]. "Chapter 4. Descriptions and Uses of Plant Foods by Indigenous Peoples". Traditional Plant Foods of Canadian Indigenous Peoples: Nutrition, Botany and Use (Food and Nutrition in History and Anthropology) (1st ed.). Taylor and Francis. pp. 26–29. ISBN 978-2-88124-465-0. Retrieved 2007-11-19.
  3. ↑ Inuit Tapiriit Kanatami. "Arctic Wildlife". Archived from the original on 2007-08-13. Retrieved 2007-11-20. Not included are the myriad of other species of plants and animals that Inuit use, such as geese, ducks, rabbits, ptarmigan, swans, halibut, clams, mussels, cod, berries and seaweed.
  4. ↑ Bennett, John; Rowley, Susan (2004). "Chapter 5. Gathering". Uqalurait: An Oral History of Nunavut. McGill-Queen's University Press. pp. 84–85. ISBN 978-0-7735-2340-1. ...shorelines, Inuit gathered seaweed and shellfish. For some, these foods were a treat;...
  5. ↑ "kuanniq". Asuilaak Living Dictionary. Retrieved 2007-02-16.
  6. ↑ Bennett, John; Rowley, Susan (2004). "Chapter 5. Gathering". Uqalurait: An Oral History of Nunavut. McGill-Queen's University Press. pp. 78–85. ISBN 978-0-7735-2340-1.
  7. 1 2 3 4 5 6 7 8 9 10 11 12 13 Bennett, John, and Susan Rowley, eds. Uqalurait: An Oral History of Nunavut. Canada: McGill-Queen's Univ. Press, 2004.
  8. ↑ Condon, R.G. (1996). The Northern Copper Inuit: A History. Norman, Oklahoma: Univ of Oklahoma Press.
  9. ↑ Gadsby, Patricia (October 1, 2004). "The Inuit Paradox". Discover Magazine. p. 2. Retrieved 24 December 2009.
  10. 1 2 Peter Heinbecker (1928). "Studies on the Metabolism of Eskimos" (PDF). J. Biol. Chem 80 (2): 461–475. Retrieved 2014-04-07.
  11. 1 2 Corcoran AC, Rabinowitch IM (1937). "A study of the blood lipids and blood protein in Canadian Eastern Arctic Eskimos" (PDF). Biochem. J. 31 (3): 343–8. PMC 1266943. PMID 16746345.
  12. 1 2 Ho KJ, Mikkelson B, Lewis LA, Feldman SA, Taylor CB (1972). "Alaskan Arctic Eskimo: responses to a customary high fat diet" (PDF). Am. J. Clin. Nutr. 25 (8): 737–45. PMID 5046723.
  13. 1 2 Sinclair, H. M. (1953). "The Diet of Canadian Indians and Eskimos" (PDF). Proceedings of the Nutrition Society 12 (01): 69–82. doi:10.1079/PNS19530016. ISSN 0029-6651. It is, however, worth noting that according to the customary convention (Woodyatt, 1921 ; Shaffer, 1921) this diet is not ketogenic since the ratio of ketogenic(FA) to ketolytic (G) aliments is 1.09. Indeed, the content of fat would have to be exactly doubled (324 g daily) to make the diet ketogenic (FA/G>1-5).
  14. 1 2 3 Yiu H. Hui (February 1985). Principles and issues in nutrition. Wadsworth Health Sciences Division. p. 91. Retrieved 2014-05-19. Eskimos actually consume more carbohydrates than most nutritionists have assumed. Because Eskimos frequently eat their meat raw and frozen, they take in more glycogen than a person purchasing meat with a lower glycogen content in a grocery store. The Eskimo practice of preserving a whole seal or bird carcass under an intact whole skin with a thick layer of blubber also permits some proteins to ferment into carbohydrates.
  15. ↑ Rabinowitch, IM. (May 1936). "Clinical and Other Observations on Canadian Eskimos in the Eastern Arctic." (PDF). Can Med Assoc J 34 (5): 487–501. PMC 1561651. PMID 20320248. Retrieved 2014-04-25.
  16. ↑ Pfeiffer, Carl J. (1997). "Renal cellular and tissue specializations in the bottlenose dolphin (Tursiops truncatus) and beluga whale (Delphinapterus leucas)" (PDF). Aquatic Mammals 23 (2): 75–84. Retrieved 2014-04-25.
  17. 1 2 3 Lockyer, Christina (1991). "Body composition of the sperm whale, Physeter cation, with special reference to the possible functions of fat depots" (PDF). Journal of the Marine Research Institute 12 (2). ISSN 0484-9019. Retrieved 2014-04-25. Carbohydrate which has been directly assessed (not deduced by subtraction of other components from total weight of sample) is significant in amount, reaching levels in the range 8—30%...The significant levels of carbohydrate, probably mostly in the form of glycogen, in both blubber and muscle, may represent an instant form of energy for diving via anaerobic glycolysis.
  18. ↑ Hochachka, P.; Storey, K. (1975). "Metabolic consequences of diving in animals and man". Science 187 (4177): 613–621. doi:10.1126/science.163485. ISSN 0036-8075. PMID 163485. In the terminal stages of prolonged diving, however, even these organs must tolerate anoxia for surprisingly long times, and they typically store unusually large amounts of glycogen for this purpose.
  19. ↑ R. A. Lawrie; David Ledward (23 January 2014). Lawrie’s Meat Science. Elsevier Science. pp. 92–. ISBN 978-1-84569-161-5. A much delayed onset of rigor mortis has been observed in the muscle of the whale (Marsh, 1952b). The ATP level and the pH may remain at their high in vivo values for as much as 24h at 37ºC. No adequate explanation of this phenomenon has yet been given; but the low basal metabolic rate of whale muscle (Benedict, 1958), in combination with the high content of oxymyoglobin in vivo (cf 4.3.1), may permit aerobic metabolism to continue slowly for some time after the death of the animal, whereby ATP levels can be maintained sufficiently to delay the union of actin and myosin in rigor mortis.
  20. ↑ Peter J. Bechtel; UNKNOWN. AUTHOR (2 December 2012). Muscle as Food. Elsevier Science. pp. 171–. ISBN 978-0-323-13953-3. Retrieved 19 May 2014. Freezing does stop the postmortem metabolism but only at about -18ºC and lower temperatures. Above -18ºC increasing temperatures of storage cause an increasing rate of ATP breakdown and glycolysis that is higher in the comminuted meat than in the intact tissue (Fisher et al., 1980b). If the ATP concentration in the frozen tissue falls below ~ 1 µmol/g no contraction or rigor can occur because they are prevented by the rigid matrix of ice.
  21. ↑ Lawrie 2014, p. 298.
  22. ↑ Krogh, August; Krogh, Marie (1915). "A Study of The Diet And Metabolism of Eskimos Undertaken In 1908 On An Expedition To Greenland". Meddelelser om Grønland 51 (1). Retrieved 2015-12-19.
  23. ↑ Kang-Jey Ho, Belma Mikkelson, Lena A. Lewis, Sheldon A. Feldman, and C. Bruce Taylor (1972). "Alaskan Arctic Eskimo: responses to a customary high fat diet" (PDF). Am J Clin Nutr. 25 (8): 737–745. Retrieved 2014-03-07.
  24. ↑ Gadsby, Patricia (October 1, 2004). "The Inuit Paradox". Discover Magazine. pp. 1–4. Retrieved 24 December 2009.
  25. ↑ Fodor, George J.; Helis, Eftyhia; Yazdekhasti, Narges; Vohnout, Branislav (2014). ""Fishing" for the origins of the "Eskimos and heart disease" story. Facts or wishful thinking? A review" (PDF). Canadian Journal of Cardiology 30: 864–868. doi:10.1016/j.cjca.2014.04.007. ISSN 0828-282X.
  26. ↑ Preston, Elizabeth (2014-08-01). "The Fishy Origins of the Fish Oil Craze". Slate (The Slate Group). Retrieved 2014-08-05. In the 1970s, a pair of Danish researchers ventured north of the Arctic Circle and into medical lore. Studying a scattered Inuit population, they concluded that eating plenty of fish and other marine animals protected this group from heart disease. The researchers would eventually suggest that everyone else’s hearts and arteries might also benefit from the “Eskimo diet,” promoting a health food trend that continues to this day. The only trouble is, the two Danes never proved that the Inuit had low rates of heart disease. They never tested it at all. But today the market for fish oil pills is booming, even as scientists conduct trial after trial to hunt for a link to heart health that has never quite solidified.
  27. ↑ Bjerregaard, Peter; Young, T. Kue; Hegele, Robert A. (2003-02-01). "Low incidence of cardiovascular disease among the Inuit--what is the evidence?". Atherosclerosis 166 (2): 351–357. doi:10.1016/s0021-9150(02)00364-7. ISSN 0021-9150. PMID 12535749.
  28. ↑ Zimmer, Carl (September 17, 2015). "Inuit Study Adds Twist to Omega-3 Fatty Acids’ Health Story". New York Times. Retrieved October 11, 2015.
  29. ↑ O'Connor, Anahad (March 30, 2015). "Fish Oil Claims Not Supported by Research". New York Times. Retrieved October 11, 2015.
  30. ↑ Grey, Andrew; Bolland, Mark (March 2014). "Clinical Trial Evidence and Use of Fish Oil Supplements". JAMA Internal Medicine 174 (3): 460–462. doi:10.1001/jamainternmed.2013.12765. Retrieved October 11, 2015.
  31. ↑ Gadsby, Patricia (October 1, 2004). "The Inuit Paradox". Discover Magazine. pp. 1–2. Retrieved 24 December 2009.
  32. 1 2 3 4 Klutschak, Heinrich. Overland to Starvation Cove. Trans. and Ed. William Barr. Canada: Univ. of Toronto Press, 1987.
  33. 1 2 3 4 5 6 7 8 9 10 11 Borré, Kristen. "Seal Blood, Inuit Blood, and Diet: A Biocultural Model of Physiology and Cultural Identity." Medical Anthropology Quarterly 5 (1991): 48–62.
  34. ↑ Damas, David. "Central Eskimo Systems of Food Sharing." Ethnology 11 (1972): 220–240.
  35. 1 2 Tigullaraq, Elijah (May 2008). "Why eat raw meat?" (PDF). Nunavut Municipal Training Organization. Retrieved 2014-05-19. A person may sweat as the food gets processed in the stomach even when it’s extremely cold outdoors after eating raw meat. A person may find it difficult to sleep when he has eaten raw meat before bed-time. Inuit try not to eat raw meat before bed-time, because you will sweat a great deal when the food starts to get processed in the stomach. A hangover is nothing compared to “sweats” in the middle of the night, all night, from eating raw meat. Inuit are known to have warm hands when you shake hands with them. That’s from eating raw meat or mammal meat from the sea.

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