If donating prior to high ferritin and onset of symptoms, that might be enough, but to handle the former, one needs much more frequent blood donations to push t

If donating prior to high ferritin and onset of symptoms, that might be enough, but to handle the former, one needs much more frequent blood donations to push the level of stored iron level down than what donations allow. (at least in Sweden, where you can donate twice a year, but the initial treatment is biweekly iirc).