another benefit of this is that it is also used by hair follicles to grow healthy hair he recommends a dose of between 50 and 400 mg per day to prevent deficiency and hair loss as women undergo menstruation there occurs a considerable amount of blood loss in the body which put them at a higher risk of anaemia also many women undergo pain and menstrual cramps which leaves them physically weak dr samita gandhi gynaecologist says i recommended that menstruating women take extra iron to prevent anaemia with the loss of blood over several days many women find that their iron levels plunge the recommended 15 mg per day is easiest to consume as a dietary supplement either on its own or as part of a multivitaminlisaantaotimesgroupcom