Dairy products are generally defined as food produced from the milk of mammals (the Food Standards Agency of the United Kingdom defines dairy as "foodstuffs made from mammalian milk"). They are usually high energy-yielding food products. A production plant for the processing of milk is called a dairy or a dairy factory. Apart from breastfed infants, the human consumption of dairy products is sourced primarily from the milk of cows, yet goats, sheep, yaks, camels, and other mammals are other sources of dairy products consumed by humans. Dairy products are commonly found in European, Middle Eastern and Indian cuisine, whereas aside from Mongolian cuisine they are little-known in traditional East Asian cuisine.
Types of dairy products 
- Milk after optional homogenization, pasteurization, in several grades after standardization of the fat level, and possible addition of bacteria Streptococcus lactis and Leuconostoc citrovorum
- Crème fraîche, slightly fermented cream
- Cultured milk resembling buttermilk, but uses different yeast and bacterial cultures
- Kefir, fermented milk drink from the Northern Caucasus
- Kumis/Airag, slightly fermented mares' milk popular in Central Asia
- Powdered milk (or milk powder), produced by removing the water from (usually skim) milk
- Whole milk products
- Buttermilk products
- Skim milk
- Whey products
- Ice cream
- High milk-fat and nutritional products (for infant formulas)
- Cultured and confectionery products
- Condensed milk, milk which has been concentrated by evaporation, with sugar added for reduced process time and longer life in an opened can
- Khoa, milk which has been completely concentrated by evaporation, used in Indian cuisine including gulab jamun, peda, etc.)
- Evaporated milk, (less concentrated than condensed) milk without added sugar
- Ricotta, acidified whey, reduced in volume
- Infant formula, dried milk powder with specific additives for feeding human infants
- Baked milk, a variety of boiled milk that has been particularly popular in Russia
- Butter, mostly milk fat, produced by churning cream
- Cheese, produced by coagulating milk, separating from whey and letting it ripen, generally with bacteria and sometimes also with certain molds
- Curds, the soft, curdled part of milk (or skim milk) used to make cheese
- Whey, the liquid drained from curds and used for further processing or as a livestock feed
- Cottage cheese
- Cream cheese, produced by the addition of cream to milk and then curdled to form a rich curd or cheese
- Fromage frais
- Caseinates, sodium or calcium salts of casein
- Milk protein concentrates and isolates
- Whey protein concentrates and isolates, reduced lactose whey
- Hydrolysates, milk treated with proteolytic enzymes to alter functionality
- Mineral concentrates, byproduct of demineralizing whey
- Yogurt, milk fermented by Streptococcus salivarius ssp. thermophilus and Lactobacillus delbrueckii ssp. bulgaricus sometimes with additional bacteria, such as Lactobacillus acidophilus
- Clabber, milk naturally fermented to a yogurt-like state
- Gelato, slowly frozen milk and water, lesser fat than ice cream
- Ice cream, slowly frozen cream, milk, flavors and emulsifying additives
Dairy products can cause health issues for individuals who have lactose intolerance or a milk allergy. Some dairy products such as blue cheese may become contaminated with the fungus Aspergillus fumigatus during ripening, which can trigger asthma and other respiratory problems in susceptible individuals. Dairy products if consumed after the expiry date can cause serious heart problems.
Vegan advocates, such as John A. McDougall, Caldwell Esselstyn, Neal D. Barnard, Dean Ornish, Michael Greger, and T. Colin Campbell, have argued that high animal fat and protein diets, such as the standard American diet, are detrimental to health, and that a low-fat vegan diet may both prevent and reverse degenerative diseases such as coronary artery disease and diabetes.
Avoidance of Dairy Products
Some groups avoid dairy products for non-health related reasons:
- Religious - Some religions restrict or do not allow for the consumption of dairy products. For example, some scholars of Jainism advocate not consuming any dairy products because dairy is perceived to involve violence against cows. Strict Judism requires that meat and dairy products are not served at the same meal, served or cooked in the same utensils, or stored together as prescribed in Deuteronomy 14:21.
- Ethical - Veganism 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 dairy include how dairy is produced, how the animals are handled, and the environmental effect of dairy production.
See also 
- [dead link]
- Agin, Khosrow. "Seroprevalence of specific immunoglobulin G antibodies against aspergillus fumigatus among chronic persistent asthma". Retrieved 11 June 2009.
- El-Gendy, S. M.; A. A. El-Badawi. "Aspergillus fumigatus as a contaminant in blue-veined cheese production". Retrieved 11 June 2009.
- Škrinjar Marija, M. et al.. "Frequency of Aspergillus fumigatus fres.: A toxigenic and allergenic fungal species in milking cows feeds throughout one research year". Retrieved 11 June 2009.
- For T. Colin Campbell on cancer, heart disease and diabetes, see Kathy Freston. Veganist: Lose Weight, Get Healthy, Change the World. Weinstein Publishing, 2011, p. 41ff.
- For Caldwell Esselstyn on heart disease, see p. 57ff.
- For Neal D. Barnard on diabetes, see p. 73ff.
- For Dean Ornish on weight loss and reversing heart disease, see p. 21ff.
- For Michael Greger on factory farming and superbugs, see p. 109ff.
- Also see:
- Ornish, Dean. Dean Ornish's Program for Reversing Heart Disease. Random House, 1990.
- Campbell, T. Colin and Campbell, Thomas M. The China Study. BenBella Books, 2004.
- Barnard, Neal. Dr. Neal Barnard's Program for Reversing Diabetes. Random House, 2007.
- Esselstyn, Caldwell. Prevent and Reverse Heart Disease: The Revolutionary, Scientifically Proven, Nutrition-Based Cure . Avery, 2007.
- Selection of articles:
- Ornish D, Brown SE, Scherwitz LW, et al. "Can lifestyle changes reverse coronary heart disease? The Lifestyle Heart Trial", The Lancet, July 1990, 336:8708, pp. 129–133. doi:10.1016/0140-6736(90)91656-U
- Esselstyn CB Jr. (Aug 1999). "Updating a 12-year experience with arrest and reversal therapy for coronary heart disease (an overdue requiem for palliative cardiology)". Am J Cardiol. 84 (3): 339–41. doi:10.1016/S0002-9149(99)00290-8. PMID 10496449.
- Segelken, Roger. "China Study II: Switch to Western diet may bring Western-type diseases", Cornell Chronicle, June 28, 2001.
- "China-Cornell-Oxford Project On Nutrition, Environment and Health at Cornell University", Division of Nutritional Sciences, Cornell University, archived December 2002.
- McDougall, J. et al. "Effects of a Very Low-Fat, Vegan Diet in Subjects with Rheumatoid Arthritis", J Altern Complement Med, volume 8, issue 1, February 2002. doi:10.1089/107555302753507195 PMID 11890437
- Campbell TC, et al. (Oct 2002). "Medically supervised water-only fasting in the treatment of borderline hypertension". J Altern Complement Med. 8 (5): 643–50. doi:10.1089/107555302320825165. PMID 12470446.
- Trapp, C.B. and Barnard, N.D. "Usefulness of vegetarian and vegan diets for treating type 2 diabetes", Curr Diab Rep, volume 10, issue 2, April 2010.
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