Food is any substance consumed by an
organism
In biology, an organism () is any life, living system that functions as an individual entity. All organisms are composed of cells (cell theory). Organisms are classified by taxonomy (biology), taxonomy into groups such as Multicellular o ...
for
nutritional support. Food is usually of
plant
Plants are predominantly Photosynthesis, photosynthetic eukaryotes of the Kingdom (biology), kingdom Plantae. Historically, the plant kingdom encompassed all living things that were not animals, and included algae and fungi; however, all curr ...
,
animal
Animals are multicellular, eukaryotic organisms in the Kingdom (biology), biological kingdom Animalia. With few exceptions, animals Heterotroph, consume organic material, Cellular respiration#Aerobic respiration, breathe oxygen, are Motilit ...
, or
fungal origin, and contains essential
nutrient
A nutrient is a substance used by an organism to survive, grow, and reproduce. The requirement for dietary nutrient intake applies to animals, plants, fungi, and protists. Nutrients can be incorporated into cells for metabolic purposes or excr ...
s, such as
carbohydrate
In organic chemistry, a carbohydrate () is a biomolecule consisting of carbon (C), hydrogen (H) and oxygen (O) atoms, usually with a hydrogen–oxygen atom ratio of 2:1 (as in water) and thus with the empirical formula (where ''m'' may or ...
s,
fats,
proteins,
vitamin
A vitamin is an organic molecule (or a set of molecules closely related chemically, i.e. vitamers) that is an essential micronutrient that an organism needs in small quantities for the proper functioning of its metabolism. Essential nut ...
s, or
minerals. The substance is
ingested
Ingestion is the consumption of a substance by an organism. In animals, it normally is accomplished by taking in a substance through the mouth into the gastrointestinal tract, such as through eating or drinking. In single-celled organisms ingesti ...
by an organism and assimilated by the organism's
cells to provide
energy
In physics, energy (from Ancient Greek: ἐνέργεια, ''enérgeia'', “activity”) is the quantitative property that is transferred to a body or to a physical system, recognizable in the performance of work and in the form of hea ...
, maintain life, or stimulate growth. Different species of animals have different
feeding behaviours that satisfy the needs of their unique
metabolism
Metabolism (, from el, μεταβολή ''metabolē'', "change") is the set of life-sustaining chemical reactions in organisms. The three main functions of metabolism are: the conversion of the energy in food to energy available to run c ...
s, often evolved to fill a specific
ecological niche
In ecology, a niche is the match of a species to a specific environmental condition.
Three variants of ecological niche are described by
It describes how an organism or population responds to the distribution of resources and competitors (fo ...
within specific geographical contexts.
Omnivorous humans are highly adaptable and have adapted to obtain food in many different ecosystems. The majority of the
food energy required is supplied by the industrial
food industry
The food industry is a complex, global network of diverse businesses that supplies most of the food consumed by the world's population. The food industry today has become highly diversified, with manufacturing ranging from small, traditional, ...
, which produces food with
intensive agriculture and distributes it through complex
food processing and
food distribution systems. This system of conventional agriculture relies heavily on
fossil fuels, which means that the food and agricultural system is one of the
major contributors to climate change, accountable for as much as 37% of total
greenhouse gas emissions
Greenhouse gas emissions from human activities strengthen the greenhouse effect, contributing to climate change. Most is carbon dioxide from burning fossil fuels: coal, oil, and natural gas. The largest emitters include coal in China and ...
.
The food system has significant impacts on a wide range of other social and political issues including:
sustainability
Specific definitions of sustainability are difficult to agree on and have varied in the literature and over time. The concept of sustainability can be used to guide decisions at the global, national, and individual levels (e.g. sustainable livin ...
,
biological diversity,
economics
Economics () is the social science that studies the production, distribution, and consumption of goods and services.
Economics focuses on the behaviour and interactions of economic agents and how economies work. Microeconomics analy ...
,
population growth,
water supply
Water supply is the provision of water by public utilities, commercial organisations, community endeavors or by individuals, usually via a system of pumps and pipes. Public water supply systems are crucial to properly functioning societies. T ...
, and
access to food.
Food safety and
food security are monitored by international agencies like the
International Association for Food Protection,
World Resources Institute
The World Resources Institute (WRI) is a global research non-profit organization established in 1982 with funding from the MacArthur Foundation under the leadership of James Gustave Speth. WRI's activities are focused on seven areas: food, fo ...
,
World Food Programme,
Food and Agriculture Organization
The Food and Agriculture Organization of the United Nations (FAO)french: link=no, Organisation des Nations unies pour l'alimentation et l'agriculture; it, Organizzazione delle Nazioni Unite per l'Alimentazione e l'Agricoltura is an intern ...
, and
International Food Information Council.
Definition and classification
Food is any substance consumed to provide
nutritional support and energy to an
organism
In biology, an organism () is any life, living system that functions as an individual entity. All organisms are composed of cells (cell theory). Organisms are classified by taxonomy (biology), taxonomy into groups such as Multicellular o ...
.
It can be raw, processed or formulated and is consumed orally by animals for growth, health or pleasure. Food is mainly composed of water,
lipid
Lipids are a broad group of naturally-occurring molecules which includes fats, waxes, sterols, fat-soluble vitamins (such as vitamins A, D, E and K), monoglycerides, diglycerides, phospholipids, and others. The functions of lipids incl ...
s,
protein
Proteins are large biomolecules and macromolecules that comprise one or more long chains of amino acid residues. Proteins perform a vast array of functions within organisms, including catalysing metabolic reactions, DNA replication, respon ...
s and
carbohydrate
In organic chemistry, a carbohydrate () is a biomolecule consisting of carbon (C), hydrogen (H) and oxygen (O) atoms, usually with a hydrogen–oxygen atom ratio of 2:1 (as in water) and thus with the empirical formula (where ''m'' may or ...
s.
Mineral
In geology and mineralogy, a mineral or mineral species is, broadly speaking, a solid chemical compound with a fairly well-defined chemical composition and a specific crystal structure that occurs naturally in pure form.John P. Rafferty, ed. ...
s (e.g. salts) and organic substances (e.g.
vitamin
A vitamin is an organic molecule (or a set of molecules closely related chemically, i.e. vitamers) that is an essential micronutrient that an organism needs in small quantities for the proper functioning of its metabolism. Essential nut ...
s) can also be found in food. Plants,
algae
Algae ( , ; : alga ) are any of a large and diverse group of photosynthetic, eukaryotic organisms. The name is an informal term for a polyphyletic grouping that includes species from multiple distinct clades. Included organisms range from ...
and some microorganisms use
photosynthesis
Photosynthesis is a process used by plants and other organisms to convert light energy into chemical energy that, through cellular respiration, can later be released to fuel the organism's activities. Some of this chemical energy is stored i ...
to make their own food molecules. Water is found in many foods and has been defined as a food by itself. Water and
fiber
Fiber or fibre (from la, fibra, links=no) is a natural or artificial substance that is significantly longer than it is wide. Fibers are often used in the manufacture of other materials. The strongest engineering materials often incorpora ...
have low energy densities, or
calorie
The calorie is a unit of energy. For historical reasons, two main definitions of "calorie" are in wide use. The large calorie, food calorie, or kilogram calorie was originally defined as the amount of heat needed to raise the temperature of ...
s, while fat is the most energy dense component.
Some inorganic (non-food) elements are also essential for plant and animal functioning.
Human food can be classified in various ways, either by related content or by how the food is processed. The number and composition of
food groups can vary. Most systems include four basic groups that describe their origin and relative nutritional function: Vegetables and Fruit, Cereals and Bread, Dairy, and Meat. Studies that look into diet quality often group food into whole grains/cereals, refined grains/cereals, vegetables, fruits, nuts, legumes, eggs, dairy products, fish, red meat, processed meat, and sugar-sweetened beverages. The
Food and Agriculture Organization
The Food and Agriculture Organization of the United Nations (FAO)french: link=no, Organisation des Nations unies pour l'alimentation et l'agriculture; it, Organizzazione delle Nazioni Unite per l'Alimentazione e l'Agricoltura is an intern ...
and
World Health Organization
The World Health Organization (WHO) is a specialized agency of the United Nations responsible for international public health. The WHO Constitution states its main objective as "the attainment by all peoples of the highest possible level o ...
use a system with nineteen food classifications: cereals, roots, pulses and nuts, milk, eggs, fish and shellfish, meat, insects, vegetables, fruits, fats and oils, sweets and sugars, spices and condiments, beverages, foods for nutritional uses, food additives, composite dishes and savoury snacks.
Food sources
In a given ecosystem, food forms a
web of interlocking
chains with
primary producers at the bottom and
apex predators at the top.
Other aspects of the web include
detrovores (that eat
detritis) and
decomposers (that break down dead organisms).
Primary producers include algae, plants, bacteria and protists that acquire their energy from sunlight. Primary consumers are the herbivores that consume the pants and secondary consumers are the carnivores that consume those herbivores. Some organisms, including most mammals and birds, diets consist of both animals and plants and they are considered omnivores.
The chain ends with the apex predators, the animals that have no known predators in its ecosystem. Humans are often considered apex predators.
Humans are omnivores finding sustenance in vegetables, fruits, cooked meat, milk, eggs, mushrooms and seaweed.
Cereal grain is a
staple food that provides more food energy worldwide than any other type of crop.
Corn (maize),
wheat
Wheat is a grass widely cultivated for its seed, a cereal grain that is a worldwide staple food. The many species of wheat together make up the genus ''Triticum'' ; the most widely grown is common wheat (''T. aestivum''). The archaeolog ...
, and
rice
Rice is the seed of the grass species '' Oryza sativa'' (Asian rice) or less commonly '' Oryza glaberrima'' (African rice). The name wild rice is usually used for species of the genera '' Zizania'' and ''Porteresia'', both wild and domestica ...
account for 87% of all grain production worldwide.
Just over half of the worlds crops are used to feed humans (55 percent), with 36 percent grown as animal feed and 9 percent for
biofuels. Fungi and bacteria are also used in the preparation of
fermented foods like bread, wine,
cheese
Cheese is a dairy product produced in wide ranges of flavors, textures, and forms by coagulation of the milk protein casein. It comprises proteins and fat from milk, usually the milk of cows, buffalo, goats, or sheep. During product ...
and
yogurt
Yogurt (; , from tr, yoğurt, also spelled yoghurt, yogourt or yoghourt) is a food produced by bacterial fermentation of milk. The bacteria used to make yogurt are known as ''yogurt cultures''. Fermentation of sugars in the milk by these bact ...
.
Sunlight
Photosynthesis
Photosynthesis is a process used by plants and other organisms to convert light energy into chemical energy that, through cellular respiration, can later be released to fuel the organism's activities. Some of this chemical energy is stored i ...
is the ultimate source of energy and food for nearly all life on earth. It is the main food source for plants, algae and certain bacteria. Without this all organisms which depend on these organisms further up the food chain would be unable to exist, from coral to lions. Energy from the sun is absorbed and used to transform water and carbon dioxide in the air or soil into oxygen and glucose. The oxygen is then released and the glucose stored as an energy reserve.
Plants
Plants as a food source are often divided into seeds, fruits, vegetables, legumes, grains and nuts.
Where plants fall within these categories can vary with botanically described fruits such as the tomato, squash, pepper and eggplant or seeds like peas commonly considered vegetables. Food is a fruit if the part eaten is derived from the
reproductive tissue, so seeds, nuts and grains are technically fruit.
From a culinary perspective fruits are generally considered the remains of botanically described fruits after grains, nuts, seeds and fruits used as vegetables are removed.
Grains can be defined as seeds that humans eat or harvest, with cereal grains (oats, wheat, rice, corn, barley, rye, sorghum and millet) belonging to the
Poaceae (grass) family and pulses coming from the
Fabaceae (legume) family.
Whole grains are foods that contain all the elements of the original seed (bran, germ, and
endosperm). Nuts are dry fruits distinguishable by their woody shell.
Fleshy fruits (distinguishable from dry fruits like grain, seeds and nuts) can be further classified as
stone fruits
In botany, a drupe (or stone fruit) is an indehiscent fruit in which an outer fleshy part (exocarp, or skin, and mesocarp, or flesh) surrounds a single shell (the ''pit'', ''stone'', or '' pyrena'') of hardened endocarp with a seed (''kernel'') ...
(cherries and peaches),
pome fruits (apples, pears),
berries (blackberry, strawberry),
citrus
''Citrus'' is a genus of flowering trees and shrubs in the rue family, Rutaceae. Plants in the genus produce citrus fruits, including important crops such as oranges, lemons, grapefruits, pomelos, and limes. The genus ''Citrus'' is nati ...
(oranges, lemon),
melons (watermelon, cantaloupe), Mediterranean fruits (grapes, fig),
tropical fruits (banana, pineapple).
Vegetables refer to any other part of the plant that can be eaten, including roots, stems, leaves, flowers, bark or the entire plant itself.
These include
root vegetables (
potato
The potato is a starchy food, a tuber of the plant ''Solanum tuberosum'' and is a root vegetable native to the Americas. The plant is a perennial in the nightshade family Solanaceae.
Wild potato species can be found from the southern Un ...
es and
carrots), bulbs (
onion
An onion (''Allium cepa'' L., from Latin ''cepa'' meaning "onion"), also known as the bulb onion or common onion, is a vegetable that is the most widely cultivated species of the genus ''Allium''. The shallot is a botanical variety of the oni ...
family), flowers (cauliflower and broccoli),
leaf vegetable
Leaf vegetables, also called leafy greens, pot herbs, vegetable greens, or simply greens, are plant leaves eaten as a vegetable, sometimes accompanied by tender petioles and shoots. Leaf vegetables eaten raw in a salad can be called salad ...
s (
spinach and
lettuce) and
stem vegetables (celery and
asparagus).
Plants have high
carbohydrate
In organic chemistry, a carbohydrate () is a biomolecule consisting of carbon (C), hydrogen (H) and oxygen (O) atoms, usually with a hydrogen–oxygen atom ratio of 2:1 (as in water) and thus with the empirical formula (where ''m'' may or ...
,
protein
Proteins are large biomolecules and macromolecules that comprise one or more long chains of amino acid residues. Proteins perform a vast array of functions within organisms, including catalysing metabolic reactions, DNA replication, respon ...
and
lipid
Lipids are a broad group of naturally-occurring molecules which includes fats, waxes, sterols, fat-soluble vitamins (such as vitamins A, D, E and K), monoglycerides, diglycerides, phospholipids, and others. The functions of lipids incl ...
content, with carbohydrates mainly in the form of starch, fructose, glucose and other sugars.
Most vitamins are found from plant sources, with the notable exceptions of
vitamin D and
vitamin B12.
Minerals are also plentiful, although the presence of
phytates can prevent their release.
Fruit can consist of up to 90% water, contain high levels of
simple sugars that contribute to their sweet taste and have a high
vitamin C
Vitamin C (also known as ascorbic acid and ascorbate) is a water-soluble vitamin found in citrus and other fruits and vegetables, also sold as a dietary supplement and as a topical 'serum' ingredient to treat melasma (dark pigment spots) a ...
content.
Compared to fleshy fruit (excepting Bananas) vegetables are high in starch,
potassium
Potassium is the chemical element with the symbol K (from Neo-Latin '' kalium'') and atomic number19. Potassium is a silvery-white metal that is soft enough to be cut with a knife with little force. Potassium metal reacts rapidly with atmosp ...
,
dietary fiber,
folate and vitamins and low in fat and calories. Grains are more starch based
and nuts have a high protein, fibre, vitamin E and B content.
Seeds are a good source of food for animals because they are abundant and contain fibre and healthful fats, such as
omega-3 fats.
Animals that only eat plants are called
herbivores, with those that mostly just eat fruits known as
frugivores, leaves, while shoot eaters are
folivores (pandas) and wood eaters termed
xylophages (termites). Frugivores include a diverse range of species from annelids to elephants, chimpanzees and many birds. About 182 fish consume seeds or fruit. There are many types of grasses, adapted to different locations, that animals (domesticated and wild) use as their main source of nutrients.
Humans only eat about 200 out of the worlds 400 000 plant species, despite at least half of them being edible.
Most human plant-based food comes from maize, rice, and wheat.
Plants can be processed into breads, pasta, cereals, juices and jams or raw ingredients such as sugar, herbs, spices and oils can be extracted.
Oilseeds are often pressed to produce rich oils -
sunflower,
flaxseed,
rapeseed (including
canola oil) and
sesame.
[McGee, Chapter 9.]
Many plants and animals have
coevolved in such a way that the fruit is good source of nutrition to the animal who then excretes the seeds some distance away allowing greater dispersal. Even
seed predation can be mutually beneficial as some seeds can survive the digestion process. Insects are major eaters of seeds,
with ants being the only real seed dispersers. Birds, although being major dispersers, only rarely eat seeds as a source of food and can be identified by their thick beak that is used to crack open the seed coat. Mammals eat a more diverse range of seeds as they are able to crush harder and larger seeds with their teeth.
Animals
Animals are used as food either directly or indirectly. This includes meat, eggs, shellfish and dairy products like milk and cheese. They are an important source or protein and are considered complete proteins for human consumption as they contain all the essential amino acids that the human body needs.
One steak, chicken breast or pork chop contains about 30 grams of protein. One large egg has 7 grams of protein, a serving of cheese about 15 grams and 1 cup of milk about 8.
Other nutrients found in animal products include calories, fat, essential vitamins (including B12) and minerals (including zinc, iron, calcium, magnesium).
Food products produced by animals include
milk
Milk is a white liquid food produced by the mammary glands of mammals. It is the primary source of nutrition for young mammals (including breastfed human infants) before they are able to digest solid food. Immune factors and immune-modulati ...
produced by
mammary glands
A mammary gland is an exocrine gland in humans and other mammals that produces milk to feed young offspring. Mammals get their name from the Latin word ''mamma'', "breast". The mammary glands are arranged in organs such as the breasts in ...
, which in many cultures is drunk or processed into
dairy products (cheese, butter, etc.). In addition, birds and other animals lay
eggs, which are often eaten, and
bee
Bees are winged insects closely related to wasps and ants, known for their roles in pollination and, in the case of the best-known bee species, the western honey bee, for producing honey. Bees are a monophyly, monophyletic lineage within the ...
s produce
honey
Honey is a sweet and viscous substance made by several bees, the best-known of which are honey bees. Honey is made and stored to nourish bee colonies. Bees produce honey by gathering and then refining the sugary secretions of plants (primar ...
, a reduced
nectar from flowers, which is a popular sweetener in many cultures. Some cultures
consume blood, sometimes in the form of
blood sausage, as a thickener for sauces, or in a
cured,
salted form for times of food scarcity, and others use
blood
Blood is a body fluid in the circulatory system of humans and other vertebrates that delivers necessary substances such as nutrients and oxygen to the cells, and transports metabolic waste products away from those same cells. Blood in th ...
in stews such as
jugged hare.
Some cultures and people do not consume meat or animal food products for cultural, dietary, health, ethical, or ideological reasons.
Vegetarians choose to forgo food from animal sources to varying degrees.
Vegan
Veganism is the practice of abstaining from the use of animal product—particularly in diet—and an associated philosophy that rejects the commodity status of animals. An individual who follows the diet or philosophy is known as a vegan. ...
s do not consume any foods that are or contain
ingredients from an animal source.
Taste perception
Animals, specifically humans, have five different types of tastes:
sweet,
sour,
salty,
bitter
Bitter may refer to:
Common uses
* Resentment, negative emotion or attitude, similar to being jaded, cynical or otherwise negatively affected by experience
* Bitter (taste), one of the five basic tastes
Books
* ''Bitter (novel)'', a 2022 novel ...
, and
umami. As animals have
evolved, the tastes that provide the most energy (
sugar and
fats) are the most pleasant to eat while others, such as
bitter
Bitter may refer to:
Common uses
* Resentment, negative emotion or attitude, similar to being jaded, cynical or otherwise negatively affected by experience
* Bitter (taste), one of the five basic tastes
Books
* ''Bitter (novel)'', a 2022 novel ...
, are not enjoyable. Water, while important for survival, has no taste. Fats, on the other hand, especially
saturated fats, are thicker and rich and are thus considered more enjoyable to eat.
Sweet
Generally regarded as the most pleasant taste,
sweetness is almost always caused by a type of simple
sugar such as
glucose
Glucose is a simple sugar with the molecular formula . Glucose is overall the most abundant monosaccharide, a subcategory of carbohydrates. Glucose is mainly made by plants and most algae during photosynthesis from water and carbon dioxide, usi ...
or
fructose
Fructose, or fruit sugar, is a ketonic simple sugar found in many plants, where it is often bonded to glucose to form the disaccharide sucrose. It is one of the three dietary monosaccharides, along with glucose and galactose, that are absorb ...
, or
disaccharides such as
sucrose
Sucrose, a disaccharide, is a sugar composed of glucose and fructose subunits. It is produced naturally in plants and is the main constituent of white sugar. It has the molecular formula .
For human consumption, sucrose is extracted and refi ...
, a molecule combining glucose and fructose.
[New Oxford American Dictionary] Complex carbohydrates are long chains and thus do not have the sweet taste. Artificial sweeteners such as
sucralose are used to mimic the sugar molecule, creating the sensation of sweet, without the calories. Other types of sugar include
raw sugar, which is known for its amber color, as it is unprocessed. As sugar is vital for energy and survival, the taste of sugar is pleasant.
The
stevia plant contains a compound known as
steviol which, when extracted, has 300 times the sweetness of sugar while having minimal impact on blood sugar.
Sour
Sourness is caused by the taste of
acids, such as
vinegar
Vinegar is an aqueous solution of acetic acid and trace compounds that may include flavorings. Vinegar typically contains 5–8% acetic acid by volume. Usually, the acetic acid is produced by a double fermentation, converting simple sugars to ...
in alcoholic beverages. Sour foods include
citrus
''Citrus'' is a genus of flowering trees and shrubs in the rue family, Rutaceae. Plants in the genus produce citrus fruits, including important crops such as oranges, lemons, grapefruits, pomelos, and limes. The genus ''Citrus'' is nati ...
, specifically
lemons,
limes
Limes may refer to:
* the plural form of lime (disambiguation)
* the Latin word for ''limit'' which refers to:
** Limes (Roman Empire)
(Latin, singular; plural: ) is a modern term used primarily for the Germanic border defence or delimitin ...
, and to a lesser degree
oranges. Sour is evolutionarily significant as it is a sign for a food that may have gone
rancid due to bacteria.
[States "having an acid taste like lemon or vinegar: she sampled the wine and found it was sour. (of food, esp. milk) spoiled because of fermentation." New Oxford American Dictionary] Many foods, however, are slightly acidic, and help stimulate the taste buds and enhance flavor.
Salty
Saltiness is the taste of
alkali metal ions such as
sodium
Sodium is a chemical element with the symbol Na (from Latin ''natrium'') and atomic number 11. It is a soft, silvery-white, highly reactive metal. Sodium is an alkali metal, being in group 1 of the periodic table. Its only stable ...
and
potassium
Potassium is the chemical element with the symbol K (from Neo-Latin '' kalium'') and atomic number19. Potassium is a silvery-white metal that is soft enough to be cut with a knife with little force. Potassium metal reacts rapidly with atmosp ...
. It is found in almost every food in low to moderate proportions to enhance flavor, although to eat pure salt is regarded as highly unpleasant. There are many different types of salt, with each having a different degree of saltiness, including
sea salt
Sea salt is salt that is produced by the evaporation of seawater. It is used as a seasoning in foods, cooking, cosmetics and for preserving food. It is also called bay salt, solar salt, or simply salt. Like mined rock salt, production of sea s ...
,
fleur de sel,
kosher salt, mined salt, and grey salt. Other than enhancing flavor, its significance is that the body needs and maintains a delicate
electrolyte balance, which is the
kidney
The kidneys are two reddish-brown bean-shaped organs found in vertebrates. They are located on the left and right in the retroperitoneal space, and in adult humans are about in length. They receive blood from the paired renal arteries; bloo ...
's function. Salt may be iodized, meaning
iodine
Iodine is a chemical element with the Symbol (chemistry), symbol I and atomic number 53. The heaviest of the stable halogens, it exists as a semi-lustrous, non-metallic solid at standard conditions that melts to form a deep violet liquid at , ...
has been added to it, a necessary nutrient that promotes
thyroid function. Some canned foods, notably
soup
Soup is a primarily liquid food, generally served warm or hot (but may be cool or cold), that is made by combining ingredients of meat or vegetables with stock, milk, or water. Hot soups are additionally characterized by boiling soli ...
s or packaged
broths, tend to be high in salt as a means of preserving the food longer. Historically salt has long been used as a meat preservative as salt promotes water excretion. Similarly, dried foods also promote food safety.
Bitter
Bitterness is a sensation often considered unpleasant characterized by having a sharp, pungent taste. Unsweetened dark
chocolate
Chocolate is a food made from roasted and ground cacao seed kernels that is available as a liquid, solid, or paste, either on its own or as a flavoring agent in other foods. Cacao has been consumed in some form since at least the Olmec civil ...
,
caffeine, lemon rind, and some types of fruit are known to be bitter.
Umami
Umami has been described as savory and is characteristic of broths and cooked meats. Foods that have a strong umami flavor include meats,
shellfish, fish (including
fish sauce and preserved fish such as
maldive fish, sardines, and anchovies), tomatoes, mushrooms,
hydrolyzed vegetable protein,
meat extract
Meat extract is highly concentrated meat stock, usually made from beef or chicken. It is used to add meat flavour in cooking, and to make broth for soups and other liquid-based foods.
Meat extract was invented by Baron Justus von Liebig, a ...
,
yeast extract, cheeses, and
soy sauce.
See also
References
Sources
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*.
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* Campbell, Bernard Grant. ''Human Evolution: An Introduction to Man's Adaptations''. Aldine Transaction: 1998. .
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* Davidson, Alan. ''The Oxford Companion to Food''. 2nd ed. UK: Oxford University Press, 2006.
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*.
* Jango-Cohen, Judith. ''The History Of Food''. Twenty-First Century Books, 2005. .
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*.
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* Nicklas, Barbara J. ''Endurance Exercise and Adipose Tissue''. CRC Press, 2002. .
* Parekh, Sarad R. ''The Gmo Handbook: Genetically Modified Animals, Microbes, and Plants in Biotechnology''. Humana Press,2004. .
* Regmi, Anita (editor).''Changing Structure of Global Food Consumption and Trade''. Market and Trade Economics Division, Economic Research Service, USDA, 30 May 2001. stock #ERSWRS01-1.
* Schor, Juliet; Taylor, Betsy (editors). ''Sustainable Planet: Roadmaps for the Twenty-First Century''. Beacon Press, 2003. .
* Shah, Anup. ''Food Dumping (Aid) Maintains Poverty. Causes of Poverty''. Retrieved from http://www.globalissues.org/TradeRelated/Poverty/FoodDumping.asp on 2006-09-29.
* Simoons, Frederick J. ''Eat Not This Flesh: Food Avoidances from Prehistory to the Present''. .
* Smith, Andrew (Editor). "Food Marketing," in Oxford Encyclopedia of American Food and Drink, New York: Oxford University Press, 2007.
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* The Economic Research Service of the USDA. ''Global Food Markets: Briefing Rooms''. Retrieved from https://web.archive.org/web/20170704104430/https://www.ers.usda.gov/topics/international-markets-trade/global-food-markets.aspx on 2006-09-29.
* United Kingdom Office of Public Sector Information. ''Food Safety Act 1990 (c. 16)''. Retrieved from http://www.opsi.gov.uk/acts/acts1990/Ukpga_19900016_en_2.htm#mdiv1 on 2006-11-08.
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* Van den Bossche, Peter. ''The Law and Policy of the bosanac Trade Organization: Text, Cases and Materials''. UK: Cambridge University Press, 2005. .
* World Food Programme. ''Breaking out of the Poverty Trap: How We Use Food Aid''. Retrieved from https://web.archive.org/web/20060928075506/http://www.wfp.org/food_aid/introduction/index.asp?section=12&sub_section=1 on 2006-09-29.
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on 2006-09-29.
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Further reading
* Collingham, E.M. (2011). ''The Taste of War: World War Two and the Battle for Food''
* Katz, Solomon (2003). ''The Encyclopedia of Food and Culture'', Scribner
* Nestle, Marion (2007). ''Food Politics: How the Food Industry Influences Nutrition and Health'', University Presses of California, revised and expanded edition,
* Mobbs, Michael (2012). ''Sustainable Food'' Sydney: NewSouth Publishing,
The Future of Food(2015). A panel discussion at the 2015 ''
Digital Life Design (DLD)'' Annual Conference. "How can we grow and enjoy food, closer to home, further into the future? ''
MIT Media Lab
The MIT Media Lab is a research laboratory at the Massachusetts Institute of Technology, growing out of MIT's Architecture Machine Group in the School of Architecture. Its research does not restrict to fixed academic disciplines, but draws from ...
's'' Kevin Slavin hosts a conversation with food artist, educator, and entrepreneur Emilie Baltz, professor Caleb Harper from ''MIT Media Lab's'' CityFarm project, the Barbarian Group's Benjamin Palmer, and Andras Forgacs, the co-founder and CEO of ''Modern Meadow'', who is growing 'victimless' meat in a lab. The discussion addresses issues of sustainable
urban farming, ecosystems, technology, food supply chains and their broad environmental and humanitarian implications, and how these changes in food production may change what people may find delicious ... and the other way around." Posted on the official YouTube Channel of ''
DLD''
External links
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Food TimelineWikibooks CookbookFood BBC Radio 4 discussion with Rebecca Spang, Ivan Day and Felipe Fernandez-Armesto (''In Our Time'', 27 December 2001)
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Food watchlist articles