hi,
in spite of having normal results on basic labs, the only thing that was abnormal recently was iron saturation 12% (15 + range), ferritin(bottom normal), total iron (bottom normal), iron binding (very normal mid range).

I'm wondering if there are any ties to PN and iron deficiency?
Besides nutritional deficiency, I read chronic/ autoimmune disease can cause low iron?

For a long time, I had what they call now "restless legs". When my symptoms were beginning to affect me noticeably, I had a lot of muscle aching and "restless legs" episodes like I never had before in my leg muscles.

Recently I read that restless legs can be a sign of PN or iron deficiency, could iron deficiency then cause PN, I'm curious if anyone has explored this?

B12 is somehow connected with iron absorption/metabolizing, but my b12 is absolutely strong. Is there still benefit to supplementing?

I still have not tested Methly(?sp) Acid (b12 level indicator)...