Tea and coffee can reduce iron absorption from food.
For tea, this is very well known. The same can be true for some herbal teas [peppermint—chamomile! lime flowers [linden tea] and spices. Many people nowadays take very concentrated curcum[turmeric] capsules which can cause anaemia. Everyone should have at least one time had his ferritin levels checked[together with CRP]
Hemochromatosis is not as rare as most doctors realize and can cause considerable damage, even diabetes. Pregnancy diabetes may related to excessive iron. The same is true for gout and Alzheimer.