Hey guys,
As are many of you, I'm looking for the root cause of my restless legs and I think I have it narrowed down to a functional iron deficiency. Recently, I've been working with a naturopath and she's had me taking oral iron supplements. It's a bit of a risk because even though my serum iron is at the very bottom of the range, my supplementary blood markers (TIBC and transferrin) are not high in the range which is something you'd expect to see if you had a straight up lack or iron. After two months of taking oral supplements every other day (alternating between 20mg of elemental heme iron and 80 mg of elemental non-heme iron bi-glycinate), I got my iron re-tested and I was shocked at the result.
As an interesting side note, during the two months, I didn't feel any symptom relief and actually felt worse at times. I assumed that this was because the oral supplements raise ferritin slowly and it simply wasn't high enough for me to feel relief. When I got the results back, I had an idea why. Even though my serum iron had gone up by a small amount, my ferritin had actually DROPPED by 30 (87 -> 57). This blew my mind as I was eating a regular diet (50g-70g of protein a day and according to a nutrition tracker, I was getting my DV of iron) on top of the oral iron supplementation.
On the surface, this is a really negative result but maybe, just maybe, this is giving me a clue. It looks like during the two months, my body was flat out rejecting dietary and supplementary iron - and using my basic internet researching skills, this seems to point to hepcidin.
I think that the iron supplements are causing my body to produce a significant hepcidin excess which then prevents any sort of iron absorption. My current theory is that my slightly impaired kidney function (blood creatinine slightly above range and my eGFR around 65) and is preventing optimal hepcidin clearance through my urine which is consequently impacting my iron absorption. I've read several articles (and posts on this forum) that the IV iron can be an effective alternative to oral as it can bypass the hepcidin gatekeeper.
I've spoken to my naturopath about an iron infusion and she says despite my symptoms, that a 57 ferritin is still considered "normal" by most doctors and as a result, will be reluctant to help me by prescribing the IV. My iron blood markers are far from optimal but nothing is technically out of the medical establishments range. It's a real pickle and I don't know what to do other than stop taking the oral supplements and try eating a ton of red meat (which is not good for people with kidney problems).
I'm so desperate to solve this (I know you all can identify) that I'm thinking about tanking my ferritin on purpose so my doctor will take action with the infusion.
Do you think that's a crazy plan? I just don't know what else could cause my ferritin to go down with regular eating along with oral iron supplements in two months.
Andrew