Researchers from the Iranian university of Tarbiat Modarres linked high doses of iron to blood pressure problems in pregnant women. The researchers published the finding in the British Journal of Obstetrics and Gynaecology.
370 women participated in the research and were given a daily dose of 30mg of iron during their pregnancy. The other set of women were given a placebo with no iron. Women given the iron pill had high blood pressure in comparison to the other group.
While Iron helps to reduce anemia (causes low birth weight and premature births), many women exceed the required intake of the supplement. According to the UK Food Standards Agency, low doses found in multivitamins are less harmful and safe to use.
