Maybe something you learned the hard way, or something you found out right before making a huge mistake.

E.g., for audiophiles: don’t buy subwoofers from speaker companies, and don’t buy speakers from subwoofer companies.

    • evasive_chimpanzee@lemmy.world
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      6 hours ago

      I’d say consider where things are growing, too. If you are foraging near roadsides, pipelines, powerlines, houses, or old dump sites, there are things to consider. If you are in somewhere like Appalachia, it’s shocking how common "artisanal " mining sites are when you can recognize them.

      Herbicides are often used to keep growth down in those places.

      Old houses often have lead paint falling into soil, and leaded gas polluted a lot of roadsides. You don’t want to eat roots/tubers or low growing leafy veggies in those places. Luckily, plants apparently don’t accumulate lead.

    • SocialMediaRefugee@lemmy.ml
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      7 hours ago

      Mushrooms

      I read they think the guy in “Into the Wild” died because he was eating a plant that interfered with vitamin absorption.

      • evasive_chimpanzee@lemmy.world
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        6 hours ago

        There’s been a lot of back and forth on that. At this point, it’s probably not possible to prove, but it seems like he was eating something that wouldn’t be harmful as part of a normal diet, but was harmful to him as a large part of his diet while he was already malnourished.

    • tetris11@lemmy.ml
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      12 hours ago

      If it has gills, flaky skin, and bleeds blue, then put down the knife and walk away - you’ve just killed a member of the scottish nobility