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. 2022 Jan 29;12(2):129. doi: 10.3390/metabo12020129

Table 1.

Recommendations for iron supplementation during pregnancy [9,10]. UK: United Kingdom; ACOG: American College of Obstetrician and Gynecologist.

UK ACOG
Laboratory Thresholds Iron Dose Laboratory Thresholds Iron Dose
Supplementation for
anemic pregnant women
  • -

    Hemoglobin:

11 g/dL (1st trimester)

  • -

    Hemoglobin:

10.5 g/dL (2nd and 3rd trimesters)

 100–200 mg
iron / day
  • -

    Hemoglobin:

11 g/dL (1st and 3rd trimesters)

  • -

    10.5 g/dL (2nd trimester)

 Full supplementation
Supplementation for non-anemic women with iron deficiency
  • -

    Ferritin < 30 µg/L

 65 mg iron / day - -
Systematic supplementation for all women - Not recommended - Low dose iron in the first trimester