I’m having trouble finding a comparable number for other animals, though. Apparently for a lot of trace elements (like copper or selenium) ruminants are actually much worse at absorption, because the microbes essentially put them into a less available form.
Are we actually that bad at absorbing iron? Honest question, I always assumed it was a matter of the amount of iron in there in the first place.
We suck at it. Read ferinstance this
I’m having trouble finding a comparable number for other animals, though. Apparently for a lot of trace elements (like copper or selenium) ruminants are actually much worse at absorption, because the microbes essentially put them into a less available form.