Quote:
Originally Posted by Volvo-brickster
how does the body become lactose intolerant if you have been drinking it for years ?
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I think i remember learning that it is actually genetically linked. Lactose is broken down by lactase and as people get older, some have decreased expression of lactase.
Therefore, if you don't break down lactose, it wont get absorbed and then it basically causes osmotic diarrhea.
It is actually really common too.