eating

Eating - Wikipedia Eating From Wikipedia, the free encyclopedia Jump to: navigation, search "Eat" redirects here. For other uses of "eat", or "EAT" as an abbreviation or acronym, see EAT (disambiguation). "Feeding" redirects here. For other uses, see Feeding (disambiguation). Amandines de Provence, poster by Leonetto Cappiello, 1900 Eating (also known as consuming) is the ingestion of food, typically to provide a heterotrophic organism with energy and to allow for growth. Animals and other heterotrophs must eat in order to survive — carnivores eat other animals, herbivores eat plants, omnivores consume a mixture of both plant and animal matter, and detritivores eat detritus. Fungi digest organic matter outside of their bodies as opposed to animals that digest their food inside their bodies. For humans, eating is an activity of daily living. Some individuals may limit their amount of nutritional intake. This may be a result of a lifestyle choice, due to hunger or famine, as part of a diet or as religious fasting. Contents 1 Eating practices among humans 2 Development in humans 2.1 Eating positions 2.2 Compulsive overeating 2.3 Hunger and satiety 2.3.1 Initiation 2.3.2 Termination 2.3.3 Role of the brain 3 Disorders 4 See also 5 References 6 External links Eating practices among humans[edit] Women eating biscuits in England A girl eating a cake Many homes have a large eating room or outside (in the tropics) kitchen area devoted to preparation of meals and food, and may have a dining room, dining hall, or another designated area for eating. Some trains have a dining car. Most societies also have restaurants, food courts, and food vendors so that people may eat when away from home, when lacking time to prepare food, or as a social occasion (dining club).[1] At their highest level of sophistication, these places become "theatrical spectacles of global cosmopolitanism and myth."[2] At picnics, potlucks, and food festivals, eating is in fact the primary purpose of a social gathering. At many social events, food and beverages are made available to attendees. Dishware, silverware, drinkware, and cookware come in a wide array of forms and sizes. People usually have two or three meals a day regularly. Snacks of smaller amounts may be consumed between meals. Doctors in the UK, recommend three meals a day ( with between 400-600 kcal per meal),[3][4] with four to six hours between.[5] Having three well-balanced meals (thus half of the plate with vegetables,[6] 1/4 protein food as meat, ... and 1/4 carbohydrates as pasta, rice, ...) will then account to some 1800–2000 kcal, which is the average requirement for a regular person.[7] The issue of healthy eating has long been an important concern to individuals and cultures. Among other practices, fasting, dieting, and vegetarianism are all techniques employed by individuals and encouraged by societies to increase longevity and health. Some religions promote vegetarianism, considering it wrong to consume animals. Leading nutritionists believe that instead of indulging oneself in three large meals each day, it is much healthier and easier on the metabolism to eat five smaller meals each day (e.g. better digestion, easier on the lower intestine to deposit wastes; whereas larger meals are tougher on the digestive tract and may call for the use of laxatives.[8] However, psychiatrists with Yale Medical School have found that people who suffer from Binge Eating Disorder (BED) and consume three meals per day weigh less than those who have meals that are more frequent. Eating can also be a way of making money (see competitive eating). In jurisdictions under sharia law, it may be proscribed for Muslim adults during the daylight hours of Ramadan.[9][10][11] Development in humans[edit] This section does not cite any sources. Please help improve this section by adding citations to reliable sources. Unsourced material may be challenged and removed. (July 2016) (Learn how and when to remove this template message) Eating with fork at the restaurant Traditional way of eating in Uzbekistan Girl with chopsticks Ethiopians eating with hands Newborn babies do not eat adult foods. They survive solely on breast milk or formula. Small amounts of pureed food are sometimes fed to young infants as young as two or three months old, but most infants do not eat adult food until they are between six and eight months old. Young babies eat pureed baby foods because they have few teeth and immature digestive systems. Between 8 and 12 months of age, the digestive system improves, and many babies begin eating finger foods. Their diet is still limited, however, because most babies lack molars or canines at this age, and often have a limited number of incisors. By 18 months, babies often have enough teeth and a sufficiently mature digestive system to eat the same foods as adults. Learning to eat is a messy process for children, and children often do not master neatness or eating etiquette until they are 5 or 6 years old. Eating positions[edit] This section needs expansion with: Additional information regarding Far East, Europe and America. You can help by adding to it. (September 2011) Eating positions vary according to the different regions of the world, as culture influences the way people eat their meals. For example, most of the Middle Eastern countries, eating while sitting on the floor is most common, and it is believed to be healthier than eating while sitting to a table.[citation needed][12] Compulsive overeating[edit] Main article: Compulsive overeating Compulsive overeating, or emotional eating, is "the tendency to eat in response to negative emotions".[13] Empirical studies have indicated that anxiety leads to decreased food consumption in people with normal weight and increased food consumption in the obese.[14] Many laboratory studies showed that overweight individuals are more emotionally reactive and are more likely to overeat when distressed than people of normal weight. Furthermore, it was consistently found that obese individuals experience negative emotions more frequently and more intensively than do normal weight persons.[15] The naturalistic study by Lowe and Fisher compared the emotional reactivity and emotional eating of normal and overweight female college students. The study confirmed the tendency of obese individuals to overeat, but these findings applied only to snacks, not to meals. That means that obese individuals did not tend to eat more while having meals; rather, the amount of snacks they ate between meals was greater. One possible explanation that Lowe and Fisher suggest is obese individuals often eat their meals with others and do not eat more than average due to the reduction of distress because of the presence of other people. Another possible explanation would be that obese individuals do not eat more than the others while having meals due to social desirability. Conversely, snacks are usually eaten alone.[15] Hunger and satiety[edit] Further information: Hunger (motivational state) There are many physiological mechanisms that control starting and stopping a meal. The control of food intake is a physiologically complex, motivated behavioral system. Hormones such as cholecystokinin, bombesin, neurotensin, anorectin, calcitonin, enterostatin, leptin and corticotropin-releasing hormone have all been shown to suppress food intake.[16][17] Initiation[edit] German Shepherd puppy eating out of a human hand There are numerous signals given off that initiate hunger. There are environmental signals, signals from the gastrointestinal system, and metabolic signals that trigger hunger. The environmental signals come from the body’s senses. The feeling of hunger could be triggered by the smell and thought of food, the sight of a plate, or hearing someone talk about food.[18] The signals from the stomach are initiated by the release of the peptide hormone ghrelin. Ghrelin is a hormone that increases appetite by signaling to the brain that a person is hungry.[19] Environmental signals and ghrelin are not the only signals that initiate hunger, there are other metabolic signals as well. As time passes between meals, the body starts to take nutrients from long-term reservoirs.[18] When the glucose levels of cells drop (glucoprivation), the body starts to produce the feeling of hunger. The body also stimulates eating by detecting a drop in cellular lipid levels (lipoprivation).[18] Both the brain and the liver monitor the levels of metabolic fuels. The brain checks for glucoprivation on its side of the blood–brain barrier (since glucose is its fuel), while the liver monitors the rest of the body for both lipoprivation and glucoprivation.[20] Termination[edit] There are short-term signals of satiety that arise from the head, the stomach, the intestines, and the liver. The long-term signals of satiety come from adipose tissue.[18] The taste and odor of food can contribute to short-term satiety, allowing the body to learn when to stop eating. The stomach contains receptors to allow us to know when we are full. The intestines also contain receptors that send satiety signals to the brain. The hormone cholecystokinin is secreted by the duodenum, and it controls the rate at which the stomach is emptied.[21] This hormone is thought to be a satiety signal to the brain. Peptide YY 3-36 is a hormone released by the small intestine and it is also used as a satiety signal to the brain.[22] Insulin also serves as a satiety signal to the brain. The brain detects insulin in the blood, which indicates that nutrients are being absorbed by cells and a person is getting full. Long-term satiety comes from the fat stored in adipose tissue. Adipose tissue secretes the hormone leptin, and leptin suppresses appetite. Long-term satiety signals from adipose tissue regulates short-term satiety signals.[18] Role of the brain[edit] The brain stem can control food intake, because it contains neural circuits that detect hunger and satiety signals from other parts of the body.[18] The brain stem’s involvement of food intake has been researched using rats. Rats that have had the motor neurons in the brain stem disconnected from the neural circuits of the cerebral hemispheres (decerebration), are unable to approach and eat food.[18] Instead they have to obtain their food in a liquid form. This research shows that the brain stem does in fact play a role in eating. There are two peptides in the hypothalamus that produce hunger, melanin concentrating hormone (MCH) and orexin. MCH plays a bigger role in producing hunger. In mice, MCH stimulates feeding and a mutation causing the overproduction of MCH led to overeating and obesity.[23] Orexin plays a greater role in controlling the relationship between eating and sleeping. Other peptides in the hypothalamus that induce eating are neuropeptide Y (NPY) and agouti-related protein (AGRP).[18] Satiety in the hypothalamus is stimulated by leptin. Leptin targets the receptors on the arcuate nucleus and suppresses the secretion of MCH and orexin. The arcuate nucleus also contains two more peptides that suppress hunger. The first one is cocaine- and amphetamine-regulated transcript (CART), the second is α-MSH (α-melanocyte-stimulating hormone).[18] Disorders[edit] Main article: Eating disorder Physiologically, eating is generally triggered by hunger, but there are numerous physical and psychological conditions that can affect appetite and disrupt normal eating patterns. These include depression, food allergies, ingestion of certain chemicals, bulimia, anorexia nervosa, pituitary gland malfunction and other endocrine problems, and numerous other illnesses and eating disorders. A chronic lack of nutritious food can cause various illnesses, and will eventually lead to starvation. When this happens in a locality on a massive scale, it is considered a famine. If eating and drinking is not possible, as is often the case when recovering from surgery, alternatives are enteral[24] nutrition and parenteral nutrition.[25] See also[edit] Food portal Aphagia Chewing Competitive eating Crop Dietary supplement Dieting Dining in, formal military ceremony Energy crop Foodways Forced feeding Muk-bang Swallowing References[edit] ^ John Raulston Saul (1995), "The Doubter's Companion", 155 ^ David Grazian (2008), "On the Make: The Hustle of Urban Nightlife", 32 ^ "Be calorie smart 400-600-600". nhs.uk. Retrieved 25 May 2017.  ^ "Cut down on your calories". nhs.uk. 15 October 2015. Retrieved 25 May 2017.  ^ Sen, Debarati (27 July 2016). "How often should you eat?". Times of India. Retrieved 25 May 2017.  ^ Half of plate to be filled with vegetables, according to Harvard School of Public Health ^ Calorie requirements for regular person estimated at 2000 kcal ^ Micheals, Jullian. "FitWatch - Free Online Calorie Counter & Diet Tracker / Weight Loss Tools and Calculators." FitWatch RSS. N.p., n.d. Web. 13 Mar. 2013. ^ Sharia and Social Engineering: p 143, R. Michael Feener - 2013 ^ FOOD & EATING IN MEDIEVAL EUROPE - Page 73, Joel T. Rosenthal - 1998 ^ Conscious Eating: Second Edition - Page 9, Gabriel Cousens, M.D. - 2009 ^ Brito, Leonardo Barbosa Barreto de; Ricardo, Djalma Rabelo; Araújo, Denise Sardinha Mendes Soares de; Ramos, Plínio Santos; Myers, Jonathan; Araújo, Claudio Gil Soares de (2012-12-13). "Ability to sit and rise from the floor as a predictor of all-cause mortality". European Journal of Preventive Cardiology. 21: 2047487312471759. ISSN 2047-4873. PMID 23242910. doi:10.1177/2047487312471759.  ^ Eldredge, K. L.; Agras, W. S. (1994). "Weight and Shape Overconcern and Emotional Eating in Binge Eating Disorder". International Journal of Eating Disorders. 19 (1): 73–82.  ^ McKenna, R. J. (1972). "Some Effects of Anxiety Level and Food Cues on the Eating Behavior of Obese and Normal Subjects: A Comparison of Schachterian and Psychosomatic Conceptions". Journal of Personality and Social Psychology. 22 (3): 311–319. doi:10.1037/h0032925.  ^ a b Lowe, M. R.; Fisher, E. B. Jr (1983). "Emotional Reactivity, Emotional Eating, and Obesity: A Naturalistic Study". Journal of Behavioral Medicine. 6 (2): 135–149. doi:10.1007/bf00845377.  ^ Geiselman, P.J. (1996). Control of food intake. A physiologically complex, motivated behavioral system. Endocrinol Metab Clin North Am. 1996 Dec;25(4):815-29. ^ http://www.ncbi.nlm.nih.gov/entrez/dispomim.cgi?id=164160&rn=1 ^ a b c d e f g h i Carlson, Neil (2010). Physiology of Behavior. Boston, MA: Allyn & Bacon. pp. 412–426.  ^ Funai, M.D., Edmund. "Ghrelin, Hormone That Stimulates Appetite, Found To Be Higher In PWS". Retrieved 29 April 2012.  ^ Berg, JM. "Section 30.2Each Organ Has a Unique Metabolic Profile". Biochemistry 5th Edition. W H Freeman. Retrieved 29 April 2012.  ^ Little, TJ; Horowitz, M; Feinle-Bisset, C. "Role of cholecystokinin in appetite control and body weight regulation.". Obesity Reviews. 6: 297–306. PMID 16246215. doi:10.1111/j.1467-789X.2005.00212.x.  ^ Degen, L. "Effect of peptide YY3-36 on food intake in humans.". Gastroenterology. 129: 1430–6. PMID 16285944. doi:10.1053/j.gastro.2005.09.001.  ^ Shimada, M. "MCH (Melanin Concentrating Hormone) and MCH-2 Receptor". Mice lacking Melanin-Concentrating Hormone are hypophagic and lean. Retrieved 29 April 2012.  ^ "Pediatric Feeding Tube". Feeding Clinic of Santa Monica. Retrieved 8 July 2013.  ^ Heisler, Jennifer. "Surgery." About.com. N.p., May–June 2010. Web. 13 Mar. 2013. External links[edit] Look up eating in Wiktionary, the free dictionary. Wikiquote has quotations related to: Eating Media related to Eating at Wikimedia Commons Ingestion at Encyclopædia Britannica Health-EU Portal - Nutrition v t e Activities of daily living Used to refer to daily self-care activities Basic Personal hygiene Dressing Feeding oneself Voluntary urinary and bowel control Ambulation Sleeping Instrumental Housework Meal preparation Managing money Shopping Telephone use Technology use Cleaning Optional-Instrumental Care (of self, children, the elderly) Child rearing Emergency responses Safety procedures Driving Sexual activity Related articles Disability Personal care assistant Assisted living Care of residents v t e Meals Common meals Breakfast Second breakfast Elevenses Brunch Lunch Merienda Tea Coffee break Dinner Supper Components & courses Apéritif and digestif Amuse-bouche Dessert Entrée Entremet Hors d'oeuvre Main course Meal replacement Savoury Side dish Snack Table service Buffet Conveyor belt sushi Dish Finger food Full course dinner Multicourse meal Platter Service à la française Service à la russe Silver service Small plates Presentation Dining room Eating utensils Food presentation Garnish Nyotaimori Pièce montée Serving size Tablecloth Table setting Tableware Dining Table manners / Eating utensil etiquette Toast Regional styles Anju Antipasto Cicchetti Banchan / Korean table d'hôte Bandeja paisa Dastarkhān Dim sum / Yum cha Fika Izakaya / Sakana Kaiseki Meat and three Meze Plate lunch Pu pu platter Rijsttafel Sadhya Smörgåsbord Tapas Tiffin Thali Zakuski Packed Airline meal Bento Convenience food Dosirak Instant breakfast Packed lunch Take-out TV dinner Menus and meal deals À la carte Table d'hôte Blue-plate special Combination meal Free lunch Free refill Happy hour Kids' meal School meal Suspended meal Tasting menu / Degustation Value meal Value menu Communal meals Banquet Barbecue Commercium Communal dining Dining in Mangal Picnic Potluck Sittning State dinner Supra Tableround Tea party Related topics Catering Cook Cookbook Cooking Culinary art Cuisine outline Drink Eating Food Meal preparation Meal delivery service Restaurant Snacking Waiting staff Coffee culture Tea culture Retrieved from "https://en.wikipedia.org/w/index.php?title=Eating&oldid=791704134" Categories: PhysiologyFood and drinkHuman positionsEating behaviorsDiningHidden categories: Articles needing additional references from July 2016All articles needing additional referencesArticles to be expanded from September 2011All articles to be expandedArticles using small message boxesAll articles with unsourced statementsArticles with unsourced statements from April 2011 Navigation menu Personal tools Not logged inTalkContributionsCreate accountLog in Namespaces Article Talk Variants Views Read Edit View history More Search Navigation Main pageContentsFeatured contentCurrent eventsRandom articleDonate to WikipediaWikipedia store Interaction HelpAbout WikipediaCommunity portalRecent changesContact page Tools What links hereRelated changesUpload fileSpecial pagesPermanent linkPage informationWikidata itemCite this page Print/export Create a bookDownload as PDFPrintable version In other projects Wikimedia CommonsWikiquote Languages AfrikaansالعربيةBân-lâm-gúБеларускаяCatalàČeštinaEestiEspañolEuskaraفارسیFrançaisGaeilgeGalego한국어Bahasa IndonesiaÍslenskaItalianoעבריתಕನ್ನಡລາວLietuviųMagyarМакедонскиBahasa MelayuMìng-dĕ̤ng-ngṳ̄Nederlandsनेपाली日本語PolskiPortuguêsРусскийSimple EnglishSuomiSvenskaTagalogதமிழ்తెలుగుไทยTiếng Việt吴语ייִדיש粵語Žemaitėška中文 Edit links This page was last edited on 21 July 2017, at 23:39. 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Stop staring at my plate! – 10 simple rules when eating out

Wed, Feb 20, 2008

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“I eat dinner at the kitchen table By the light that switches on I eat leftovers with mashed potatoes No more candlelight No more romance No more small-talk When the hunger’s gone” ~Rufus Wainwright feat Dido~ I am sure most of you were invited at a certain time for lunch or for dinner. It happened [...]

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