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08.01.2013, 12:52 ( 08.01.2013, 13:46)

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: 14.09.2011, 21:56

30 deowin | 11.01.201317:32

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: 04.11.2010, 13:42

29 Mile Manolov | 11.01.201312:12

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: 15.02.2011, 19:04

28 vitenu | 11.01.201310:51

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: 10.12.2010, 06:25

27 Bichkiiata | 11.01.201302:08



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What is lactose intolerance?

Lactose intolerance is a condition caused by a lack of an enzyme called lactase, which, in turn, causes the body to be unable to digest lactose, a sugar found in milk and milk products.

Lactase is normally produced by cells lining the small intestine where it breaks down lactose into a form that can be absorbed by the blood. A lack of lactase can cause uncomfortable symptoms for some people. Those who exhibit symptoms are said to be lactose intolerant.

Thirty to 50 million Americans (adults and children) are lactose intolerant. The disorder affects some populations more than others:

Seventy-five percent of all African-American, Jewish, Mexican-American, and Native American adults are lactose intolerant.
Ninety percent of Asian-American adults are lactose intolerant.
Lactose intolerance is least common among people with a northern European heritage.
   

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: 14.09.2011, 21:56

26 deowin | 10.01.201323:17

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: 29.12.2010, 13:30

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: 24.11.2010, 09:33

24 nakadetaka | 10.01.201322:35

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: 14.09.2011, 21:56

23 deowin | 10.01.201318:16

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: 10.08.2012, 13:35

22 Mitko Ivanov | 10.01.201317:35

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: 10.12.2010, 06:25

21 Bichkiiata | 10.01.201317:22



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