I just found out that my family has a genetic issue. We have very small red blood cells. There is nothing that can be done about it. However, our cell count is normal
This explains why my cardio has always sucked. I literally have to breathe 50% harder than most people to get the same O2 to my cells.
So, how can I increase my red cell count without having to eat liver? Iron and copper supplements and exercise seem to be all that I do.