I figured this might interest you @Douglas Ek
Relationship between vitamin A and iron in the liver. - PubMed - NCBI
Low dietary iron, but not low vitamin A intake, affected hemoglobin, hematocrit and red blood cell counts but not serum vitamin A levels. Mean serum vitamin A levels were not significantly lower in groups fed high dietary iron. High dietary iron was also associated with lower mean liver vitamin A levels; these differences were statistically significant only for the low vitamin A diet group. A high vitamin A intake was associated with a significantly lower mean hepatic iron level for the high dietary iron intake group. These data support the hypothesis that vitamin A is involved in the regulation of iron release from the liver.
This relationship could mean that those low in iron are adversely pressured by vitamin A, and those with iron overload might have a very heightened vit A requirement (hypothetically).
Maybe you'd need less iron if you didn't supplement vitamin A?
Relationship between vitamin A and iron in the liver. - PubMed - NCBI
Low dietary iron, but not low vitamin A intake, affected hemoglobin, hematocrit and red blood cell counts but not serum vitamin A levels. Mean serum vitamin A levels were not significantly lower in groups fed high dietary iron. High dietary iron was also associated with lower mean liver vitamin A levels; these differences were statistically significant only for the low vitamin A diet group. A high vitamin A intake was associated with a significantly lower mean hepatic iron level for the high dietary iron intake group. These data support the hypothesis that vitamin A is involved in the regulation of iron release from the liver.
This relationship could mean that those low in iron are adversely pressured by vitamin A, and those with iron overload might have a very heightened vit A requirement (hypothetically).
Maybe you'd need less iron if you didn't supplement vitamin A?