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T1D developing lactose intolerance
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<blockquote data-quote="Dark Horse" data-source="post: 1675471" data-attributes="member: 52527"><p>Most children are not lactose intolerant as they need to be able to digest the lactose present in their mother's milk. In the majority of people in the world, the ability to produce lactase (the enzyme that breaks down lactose) falls off as children reach adulthood. Many cases develop between the ages of 20-40 so to develop it at 25 is not unusual. <a href="https://www.nhs.uk/conditions/lactose-intolerance/" target="_blank">https://www.nhs.uk/conditions/lactose-intolerance/</a></p><p></p><p>Some people, however, continue to produce lactase throughout their lives so can drink milk without digestive problems. This is a dominantly inherited genetic trait and the distribution varies around the world - in North West Europe something like 10% of adults are lactose intolerant whereas in East Asia it's something like 90%. This article gives information about evolution of lactase production in adulthood and the distribution of it worldwide <a href="https://evolution.berkeley.edu/evolibrary/news/070401_lactose" target="_blank">https://evolution.berkeley.edu/evolibrary/news/070401_lactose</a></p><p></p><p>In people who normally produce lactase in adulthood, this ability may be temporarily disrupted by a gut infection - hence the advice not to drink milk while you have gastroenteritis. </p><p></p><p>If you stop taking milk or milk products for 2 weeks and symptoms disappear only to reappear when milk is reintroduced, this would suggest that lactose-intolerance is the problem and it would be worth trialling lactose-free milk.</p></blockquote><p></p>
[QUOTE="Dark Horse, post: 1675471, member: 52527"] Most children are not lactose intolerant as they need to be able to digest the lactose present in their mother's milk. In the majority of people in the world, the ability to produce lactase (the enzyme that breaks down lactose) falls off as children reach adulthood. Many cases develop between the ages of 20-40 so to develop it at 25 is not unusual. [URL]https://www.nhs.uk/conditions/lactose-intolerance/[/URL] Some people, however, continue to produce lactase throughout their lives so can drink milk without digestive problems. This is a dominantly inherited genetic trait and the distribution varies around the world - in North West Europe something like 10% of adults are lactose intolerant whereas in East Asia it's something like 90%. This article gives information about evolution of lactase production in adulthood and the distribution of it worldwide [URL]https://evolution.berkeley.edu/evolibrary/news/070401_lactose[/URL] In people who normally produce lactase in adulthood, this ability may be temporarily disrupted by a gut infection - hence the advice not to drink milk while you have gastroenteritis. If you stop taking milk or milk products for 2 weeks and symptoms disappear only to reappear when milk is reintroduced, this would suggest that lactose-intolerance is the problem and it would be worth trialling lactose-free milk. [/QUOTE]
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