How many licks would it take? Can the iron in bars even be processed by the body? Can you do this for other minerals?

    • FishFace@lemmy.world
      link
      fedilink
      arrow-up
      6
      ·
      1 year ago

      If your feet get cut, sure. This is why tetanus vaccine is given as post-exposure prophylaxis in many places if you get a wound that breaks the skin.