FYI, I lay overwhelming importance on getting my iron as low as possible. I take IP6 for ironrust chelation, take aspirin to lower ferritin stores and give blood donations every 8 weeks. I also drink coffee/cola when I eat meals with high iron load to prevent iron absorbtion.
Every kind of heavy metal will contribute to defect adrenals because these metal (if not binded correctly) are a constant source of free radicals further damaging the organs. Ray Peat has an interesting article in which he states that high iron is very dangerous. So beware of this. It is healthier to be a little low in iron as having high iron levels.