BM range in colour brown/light and dark colour shreedy texture and undigested food , floating etc .
Have taken iron for ferritin levels ,on no other medication and all other blood tests ok dont know figures.
What were your results and are you taking any suppliments for it? Are you on any other medication.
Sometimes some dosages of ferritin are too high or you might have a combination of vitamin "C" with the iron and that can give some people loose BM. Also the colour of your bowl movement can give an indication to what is going on.