I have been doing a bit of research ( again ) and I came across this in the British Medical Journal. openheart.bmj.com/content/6...
It relates to Iron Deficiency in HFPEF. it seems around 50 - 60 % of HFPEF patients are ID. The problem is that the missing iron cannot be replaced by the oral route, no amount of pills or spinach will replace the missing iron. So intravenous iron is the only way. I have also learned that iron plays a very important role in HF and may even help repair some of the damage.
I will be asking if I have ever been tested for iron deficiency, and if so the results. I am not sure if iron levels are routinely checked in HFPEF patients, does anyone know? If mine hasn't been checked I will be asking for it ASAP. If it is refused I might have to go for private tests, I consider it so important.