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Dairy products or milk products, also known as lacticinia, are
food products Food is any substance consumed by an organism for nutritional support. Food is usually of plant, animal, or fungal origin, and contains essential nutrients, such as carbohydrates, fats, proteins, vitamins, or minerals. The substance is ...
made from (or containing)
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-modula ...
. The most common dairy animals are
cow Cattle (''Bos taurus'') are large, domesticated, cloven-hooved, herbivores. They are a prominent modern member of the subfamily Bovinae and the most widespread species of the genus ''Bos''. Adult females are referred to as cows and adult ma ...
,
water buffalo The water buffalo (''Bubalus bubalis''), also called the domestic water buffalo or Asian water buffalo, is a large bovid originating in the Indian subcontinent and Southeast Asia. Today, it is also found in Europe, Australia, North America, So ...
,
nanny goat The goat or domestic goat (''Capra hircus'') is a domesticated species of goat-antelope typically kept as livestock. It was domesticated from the wild goat (''C. aegagrus'') of Southwest Asia and Eastern Europe. The goat is a member of the a ...
, and ewe. Dairy products include common grocery store food items in the
Western world The Western world, also known as the West, primarily refers to the various nations and states in the regions of Europe, North America, and Oceania.
such as
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 bac ...
, cheese and
butter Butter is a dairy product made from the fat and protein components of churned cream. It is a semi-solid emulsion at room temperature, consisting of approximately 80% butterfat. It is used at room temperature as a spread, melted as a condimen ...
. A facility that produces dairy products is known as a '' dairy''. Dairy products are consumed worldwide to varying degrees (see consumption patterns worldwide). Some people avoid some or all dairy products either because of
lactose intolerance Lactose intolerance is a common condition caused by a decreased ability to digest lactose, a sugar found in dairy products. Those affected vary in the amount of lactose they can tolerate before symptoms develop. Symptoms may include abdominal pai ...
,
veganism Veganism is the practice of abstaining from the use of animal product—particularly in diet (nutrition), diet—and an associated philosophy that rejects the commodity status of animals. An individual who follows the diet or philosophy is kn ...
, or other health reasons or beliefs.


Production relationship graph


Types of dairy product


Milk

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-modula ...
is produced after optional homogenization or pasteurization, in several grades after standardization of the fat level, and possible addition of the bacteria '' Streptococcus lactis'' and '' Leuconostoc citrovorum''. Milk can be broken down into several different categories based on type of product produced, including cream, butter, cheese, infant formula, and yogurt. Milk varies in fat content.
Skim milk Skimmed milk (British English), or skim milk (American English), is made when all the milkfat is removed from whole milk. It tends to contain around 0.1% fat. Background Historically, skimmed milk was used for fattening pigs, and was recommended ...
is milk with zero fat, while whole milk products contain fat. Milk is an ingredient in many confectioneries. Milk can be added to chocolate to produce milk chocolate.


Cream


Butter

Butter Butter is a dairy product made from the fat and protein components of churned cream. It is a semi-solid emulsion at room temperature, consisting of approximately 80% butterfat. It is used at room temperature as a spread, melted as a condimen ...
, mostly milk fat, produced by churning cream * '' Ghee'' also called, clarified butter, by gentle heating of butter and removal of the solid matter **'' Smen'', a fermented, clarified butter used in Moroccan cooking ** Anhydrous milkfat (
clarified butter Clarified butter is milk fat rendered from butter to separate the milk solids and water from the butterfat. Typically, it is produced by melting butter and allowing the components to separate by density. The water evaporates, some solids (i.e. ...
)


Fermented

Fermented milk products Fermented milk products or fermented dairy products, also known as cultured dairy foods, cultured dairy products, or cultured milk products, are dairy foods that have been fermented with lactic acid bacteria such as ''Lactobacillus'', ''Lactococc ...
include:


Yogurt

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 bac ...
, milk fermented by
thermophilic bacteria A thermophile is an organism—a type of extremophile—that thrives at relatively high temperatures, between . Many thermophiles are archaea, though they can be bacteria or fungi. Thermophilic eubacteria are suggested to have been among the earl ...
, mainly ''
Streptococcus ''Streptococcus'' is a genus of gram-positive ' (plural ) or spherical bacteria that belongs to the family Streptococcaceae, within the order Lactobacillales (lactic acid bacteria), in the phylum Bacillota. Cell division in streptococci occurs ...
salivarius'' ssp. ''thermophilus'' and ''Lactobacillus delbrueckii'' ssp. ''bulgaricus'' sometimes with additional bacteria, such as ''
Lactobacillus ''Lactobacillus'' is a genus of Gram-positive, aerotolerant anaerobes or microaerophilic, rod-shaped, non-spore-forming bacteria. Until 2020, the genus ''Lactobacillus'' comprised over 260 phylogenetically, ecologically, and metabolically div ...
acidophilus''


Cheese

Cheese, produced by coagulating milk, separating
curds Curd is obtained by coagulating milk in a sequential process called curdling. It can be a final dairy product or the first stage in cheesemaking. The coagulation can be caused by adding rennet or any edible acidic substance such as lemon ...
from
whey Whey is the liquid remaining after milk has been curdled and strained. It is a byproduct of the manufacturing of cheese or casein and has several commercial uses. Sweet whey is a byproduct resulting from the manufacture of rennet types of har ...
, and letting it ripen, generally with
bacteria Bacteria (; singular: bacterium) are ubiquitous, mostly free-living organisms often consisting of one Cell (biology), biological cell. They constitute a large domain (biology), domain of prokaryotic microorganisms. Typically a few micrometr ...
, and sometimes also with certain
mold A mold () or mould () is one of the structures certain fungi can form. The dust-like, colored appearance of molds is due to the formation of spores containing fungal secondary metabolites. The spores are the dispersal units of the fungi. Not ...
s.


Custard

* Custard, thickened with eggs * Imitation custard, thickened with starch


Frozen

*
Ice cream Ice cream is a sweetened frozen food typically eaten as a snack or dessert. It may be made from milk or cream and is flavoured with a sweetener, either sugar or an alternative, and a spice, such as cocoa or vanilla, or with fruit such as ...
, slowly frozen cream, milk, flavors and emulsifying additives (dairy ice cream) * Gelato, slowly frozen milk and water, lesser fat than ice cream *
Ice milk Ice milk, or iced milk, is a frozen dessert with less than 10 percent milk fat and the same sweetener content as ice cream. Ice milk is sometimes priced lower than ice cream. A 1994 change in United States Food and Drug Administration rules all ...
, low-fat version of ice cream *
Frozen custard Frozen custard is a cold dessert similar to ice cream, but made with eggs in addition to cream and sugar. It is usually kept at a warmer temperature compared to ice cream, and typically has a denser consistency. History Egg yolks have been int ...
*
Frozen yogurt Frozen yogurt (also known as frogurt or by the tradename Froyo; ) is a frozen dessert made with yogurt and sometimes other dairy and non-dairy products. Frozen yogurt is a frozen product containing the same basic ingredients as ice cream, but c ...
, yogurt with emulsifiers


Casein


Consumption patterns worldwide

Rates of dairy consumption vary widely worldwide. High-consumption countries consume more than
per capita ''Per capita'' is a Latin phrase literally meaning "by heads" or "for each head", and idiomatically used to mean "per person". The term is used in a wide variety of social sciences and statistical research contexts, including government statistic ...
per year. These countries are: Argentina, Armenia, Australia, Costa Rica, most European countries, Israel, Kyrgyzstan, North America and Pakistan. Medium-consumption countries consume to 150 kg per capita per year. These countries are: India, Iran, Japan, Kenya, Mexico, Mongolia, New Zealand, North and Southern Africa, most of the Middle East, and most of Latin America and the Caribbean. Low-consumption countries consume under 30 kg per capita per year. These countries are: Senegal, most of Central Africa, and most of East and Southeast Asia.


Lactose levels

For those with some degree of
lactose intolerance Lactose intolerance is a common condition caused by a decreased ability to digest lactose, a sugar found in dairy products. Those affected vary in the amount of lactose they can tolerate before symptoms develop. Symptoms may include abdominal pai ...
, considering the amount of lactose in dairy products can be important to health.


Intolerance and health research

Dairy products may upset the digestive system in individuals with
lactose intolerance Lactose intolerance is a common condition caused by a decreased ability to digest lactose, a sugar found in dairy products. Those affected vary in the amount of lactose they can tolerate before symptoms develop. Symptoms may include abdominal pai ...
or a
milk allergy Milk allergy is an adverse immune reaction to one or more proteins in cow's milk. Among the possible symptoms is anaphylaxis, a potentially life-threatening condition that requires treatment with Epinephrine (medication), epinephrine, among o ...
. People who experience lactose intolerance usually avoid milk and other lactose-containing dairy products, which may cause mild
side effect In medicine, a side effect is an effect, whether therapeutic or adverse, that is secondary to the one intended; although the term is predominantly employed to describe adverse effects, it can also apply to beneficial, but unintended, consequence ...
s, such as abdominal pain, bloating, diarrhea, gas, and nausea. Such individuals may use non-dairy
milk substitute A milk substitute is any substance that resembles milk and can be used in the same ways as milk. Such substances may be variously known as non-dairy beverage, nut milk, grain milk, legume milk, mock milk and alternative milk. For adults, milk ...
s. Consumption of dairy products does not cause
mucus Mucus ( ) is a slippery aqueous secretion produced by, and covering, mucous membranes. It is typically produced from cells found in mucous glands, although it may also originate from mixed glands, which contain both serous and mucous cells. It ...
production, and does not worsen common cold or
asthma Asthma is a long-term inflammatory disease of the airways of the lungs. It is characterized by variable and recurring symptoms, reversible airflow obstruction, and easily triggered bronchospasms. Symptoms include episodes of wheezing, co ...
symptoms. A 2019 review indicated there is no convincing evidence on whether an association between dairy consumption and risk of cancers exists.


Avoidance on principle

Some groups avoid dairy products for non-health-related reasons. Some religions restrict or do not allow the consumption of dairy products. For example, some scholars of
Jainism Jainism ( ), also known as Jain Dharma, is an Indian religion. Jainism traces its spiritual ideas and history through the succession of twenty-four tirthankaras (supreme preachers of ''Dharma''), with the first in the current time cycle bein ...
advocate not consuming any dairy products because dairy is perceived to involve violence against cows. Orthodox
Judaism Judaism ( he, ''Yahăḏūṯ'') is an Abrahamic, monotheistic, and ethnic religion comprising the collective religious, cultural, and legal tradition and civilization of the Jewish people. It has its roots as an organized religion in t ...
requires that meat and dairy products not be served at the same meal, served or cooked in the same utensils, or stored together, as prescribed in Deuteronomy 14:21.
Veganism Veganism is the practice of abstaining from the use of animal product—particularly in diet (nutrition), diet—and an associated philosophy that rejects the commodity status of animals. An individual who follows the diet or philosophy is kn ...
is the avoidance of all animal products, including dairy products, most often due to the ethics regarding how dairy products are produced. The ethical reasons for avoiding meat and dairy products include how dairy is produced, how the animals are handled, and the environmental effect of dairy production. According to a report of the United Nations'
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 ...
in 2010 the dairy sector accounted for 4 percent of global man-made greenhouse gas emissions.


See also

*
List of dairy products This is a list of dairy products. A dairy product is food produced from the milk of mammals. A production plant for the processing of milk is called a dairy or a dairy factory. Dairy farming is a class of agricultural, or an animal husbandry, ente ...
*
List of dairy product companies in the United States This is a list of dairy product companies in the United States. A dairy product is food produced from the milk of mammals. Dairy products are usually high energy-yielding food products. A production plant for the processing of milk is called a dair ...
* Dairy industry in the United States * Dairy industry in the United Kingdom


References and notes


Notes


References


Further reading

* Fuquay, John W. ed. ''Encyclopedia of Dairy Sciences'' (2nd Edition, 4 vol 2011), comprehensive coverage *Rankin, H. F. (1922) ''Imbucase: the Story of the B. C. I. C. of the Ministry of Food''. Edinburgh: Edinburgh Press (B.C.I.C.=Butter and Cheese Imports Committee) {{Authority control