Are Octopuses really high in iron?

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xtempore
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Are Octopuses really high in iron?

Post by xtempore » Tue Jul 25, 2017 7:11 am

I was checking out some nutrition facts for a friend who has an iron deficiency and was really surprised to find that most sites I checked indicate that octopuses are one of the richest sources of iron - Higher than red meats like beef and lamb, and comparable to ultra-high sources like organ meats.

Here's my understanding...

I assume that mammal organs and muscle are high in iron largely due to the iron component of haemoglobin.

But, octopuses don't have haemoglobin, they have haemocyanin which uses copper for oxygen transport rather than the iron of haemoglobin.

So, if octopuses are high in iron - what are they doing with it?

Perhaps it's not even true and someone, somewhere just made a mistake and that mistake has then just spread far and wide as fact.

Any cephalopod experts out there that could shed some light on this? :)

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