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Anemia of pregnancy

Last edited: 4/15/2026

Overview

Anemia during pregnancy, affecting approximately 40% of women globally, is primarily attributed to iron deficiency but can also result from deficiencies in other micronutrients 1. It poses significant risks to maternal and fetal health, necessitating a comprehensive nutritional approach beyond iron supplementation alone 1.

Diagnosis

  • Key Diagnostic Criteria: Hemoglobin levels below the gestational age-specific thresholds (e.g., <11 g/dL in the first trimester) 2.
  • Recommended Tests: Complete blood count (CBC) to assess hemoglobin, hematocrit, and mean corpuscular volume (MCV) 2.
  • Grading: Mild (10-10.9 g/dL), Moderate (7-9.9 g/dL), Severe (<7 g/dL) 2.
  • Management

  • First-Line Treatments: Iron supplementation (dose varies by guideline but typically 60-120 mg elemental iron daily) 2.
  • Adjunctive Treatments: Folic acid supplementation (0.4-1 mg daily) to support erythropoiesis 2.
  • Nutritional Interventions: Address deficiencies in other micronutrients such as vitamin B12, folate, and copper, alongside iron 1.
  • Dietary Advice: Increase intake of iron-rich foods, diversify diet to include meat, vegetables, and fortified cereals 2.
  • Special Populations

  • Pregnancy: Tailored nutritional interventions focusing on iron and other micronutrients are crucial throughout pregnancy 12.
  • Comorbidities: Women with parasitic infections, malaria history, or dietary restrictions require targeted management strategies 2.
  • Key Recommendations

  • Implement comprehensive nutritional screening beyond iron to identify deficiencies in other essential micronutrients during pregnancy (Evidence: Moderate) 1.
  • Use iron supplementation as a first-line treatment, tailored to gestational age and severity of anemia (Evidence: Strong) 2.
  • Encourage dietary diversification and intake of iron-rich foods to complement supplementation (Evidence: Moderate) 2.
  • References

    1 Thakur GK, Shankar H, Arora TK, Kulkarni B. Role of mineral nutrients other than iron in pregnancy: under recognized opportunities to improve maternal/fetal outcomes: a literature review. Archives of gynecology and obstetrics 2024. link 2 Zhang J, Li Q, Song Y, Fang L, Huang L, Sun Y. Nutritional factors for anemia in pregnancy: A systematic review with meta-analysis. Frontiers in public health 2022. link

    Original source

    1. [1]
    2. [2]
      Nutritional factors for anemia in pregnancy: A systematic review with meta-analysis.Zhang J, Li Q, Song Y, Fang L, Huang L, Sun Y Frontiers in public health (2022)

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