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. 2020 Apr 21;17:33. doi: 10.1186/s12986-020-00452-0

Table 4.

Physiologic Requirements for Iron in Different Pregnancy Periods

Trimester N Iron physiological requirement (μg.d−1) Iron physiological requirements adjusted by weight (μg.kg−1.d−1)
First 4 2039.07 ± 1863.59 32.28 ± 28.81
Second 4 3258.90 ± 835.73 46.90 ± 14.6
Third 3 4134.47 ± 580.41 55.74 ± 13.05