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\nLactose Intolerance: Why Many Asians Cannot 'Digest' Milk?\n

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\nLactose intolerance is quite common, especially in Asian countries. The reason behind this is gene-culture co-evolution. Lactose intolerance is the inability to digest lactose in milk because they lack the lactase enzyme. A 1981 study...\nLactose intolerance is quite common, especially in Asian countries. The reason behind this is gene-culture co-evolution. Lactose intolerance is the inability to digest lactose in milk because they lack the lactase enzyme. A 1981 study found that the percentage of people with lactose intolerance changes from region to region. In East Asia, the numbers are insanely high; 90-100% of East Asians are lactose intolerant. Lactose is the main carbohydrate in milk. It is a vital energy source for young mammals who depend solely on their mothers milk for nutrition. They can readily digest lactose, as they have high amounts of an enzyme called lactase. Lactase breaks down lactose into glucose and galactose, which can then be absorbed by the body and converted into energy. However, lactase production begins to decline as we get older. Lactose intolerance is a condition wherein a person cannot digest lactose in milk because they lack the lactase enzyme. Consuming dairy products cause bloating, gas and diarrhea in such individuals.\n
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Resource Details

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Media Length
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3:44
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Grade
Pre-K - Higher Ed
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Subjects
Science
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\nScienceABC\n\n
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Date
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2022
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Language
English
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For Teacher Use
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Fine Print: Educational Use
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east asia, asia, frequency, ancestors, milk, energy, africa, regions, temperature, europe
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are asians lactose intolerant, asians lactose intolerant, lactose intolerance asian, why are asians lactose intolerant, asian lactose intolerance study, what percentage of asians are lactose intolerant, how many asians are lactose intolerant, are asians more prone to lactose intolerance, are asian people lactose intolerant, lactose intolerance in asia, lactose intolerance asians, why is lactose intolerance more common for certain ethnic groups, lactase, lactose persistence, enzyme, lactose intolerant, ill effects, study found, lactase persistence, digest lactose, ancestors lived, drink milk, lactose, high, conditions, percentage, areas, people, adults, individuals, latitude, develop, trait, case, readily
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