Iron is an important part of our diet, without iron we can feel fatigued and if very iron deficient considered anemic. Iron supplementation is often recommended as the easiest way to fix iron levels. (the link via the word Iron contains alot of information about iron and supplementation)
This link suggests that supplementing with iron is a "double edged sword". Too much iron can be just as bad as too little. Here is the abstract of the published work, which suggests that whilst iron levels do not effect intelligence of the child or health of the mother, too much iron may cause behavioural concerns in the child. In this study children we assessed at 4 years old.
Creating a 'standard' rule for all pregnancies (as with all aspects) can lead to loss of autonomy and doubt in ability (see the nocebo effect link below), this abstract suggests that when anemia is detected, either dietary consultation or supplementation is warrented.
Seems that following a healthy diet, looking after yourself (exercise, relaxation, friendships) is the best approach (not just in pregnancy!). Supplementation is a complex, it has long been known that vitamin C assists with iron absorption
Unwarrented worry over pregnancy and birth can led to The Nocebo Effect, documented by Odent with particular reference to Gestational diabetes but relevant to all aspects of health and well being.
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