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If someone ate a full box of high iron cereal before an mri would they get injured?
(sh.itjust.works)
this post was submitted on 21 Feb 2026
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So, I googled it. Apparently, magnetism involves the interaction between the magnetic field and an unpaired electron. The iron in our blood is bound to the heme molecule, so the magnetism is so low that is nearly undetectable. However, when we have a blood clot, there is an unbound molecule, so blood clots are very weakly magnetic (meaning, you can detect the blood clot with a big enough magnet, like in an MRI).
So the question is, what happens to iron when we digest it? And this is the point where I go "Ok you need an actual scientist to answer this", because I didn't study science in school. Apparently, iron starts in an oxidized ferric state (Fe3+) and our body needs to turn it into a ferrous state or bind it to a heme molecule. The + means it is in a positive state, not a neutral state, so, before it is paired, it has an unpaired electron.
But does that mean it's so strongly magnetic it's gonna hurt you, or is it weakly magnetic like blood clots? HOW THE FUCK DO I KNOW? How many iron videos do you expect me to watch on a Friday night?
Just one more video, bro.
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