• protist
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    1 year ago

    People treat “lactose intolerance” as some unusual condition, but the less common condition is “lactase persistence,” aka the ability to digest lactose. A large majority of people worldwide lose the ability to digest lactose after childhood. Lactase persistence only evolved in certain populations that depended heavily on livestock over agriculture. See the genetic map here

    • slaacaa@lemmy.world
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      1 year ago

      Yes, I became lactose intolerant in my late twenties, and this is a fun fact I like to share to those who are interested.