Intermittent iron supplements prevent anaemia in pregnancy

Intermittent use of iron also reduced unpleasant side effects, such as nausea, constipation and high haemoglobin levels, the authors of the review said.

Researchers analysed data from 18 trials involving >4000 women who took iron tablets alone, with folic acid, or with multivitamin and mineral supplements.

Women who took iron once, twice or three times a week on non-consecutive days were no more likely to suffer from anaemia by the end of their pregnancies than those who took it daily. Their babies were also no more likely to be born early or have a low birthweight.

Intermittent dosing may be suited

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