Yet after 4 months of taking iron supplements, most of the women, with their iron levels back to normal, scored as well as the best group in the first test.

但当服用补铁剂4个月后，大多数铁水平恢复正常的女性测验得分与第一次测验时最好的一组成绩相当。

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Your doctor can check for iron deficiency and if you are deficient, you might consider taking an iron supplement.

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Rick Miller, a spokesman for the British Dietetic Association, warned that taking too much iron could result in major organ failure.

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Taking too much iron, however, can be dangerous.

BBC: Iron pills may help women beat fatigue