Lactoferrin and iron

What 2 graded rows on lactoferrin agree on for iron, and where they differ. Counted side by side, never averaged.

What the rows agree on

Each block and row is one graded row from the Lactoferrin page, with its PubMed record.

Your question

Supplement
Lactoferrin Choose another

Lactoferrin and iron

2 rows · 949 people

Split. 1 row found an improvement and 1 found no difference.

No difference
Improved
Each block is one evidence row, sized by how many people it enrolled, with its grade inside.
  • Grade C× 1
  • No effect× 1
Rows
2
Trials
5
People
949
Pooled reviews may count some twice

Where they differ

From the rows
Study designHow longWhen published

The best-graded row, grade C, is a meta-analysis of 600 people (2017) and found an improvement. 1 row is graded No effect, our grade for adequately powered trials that found no effect.

The row that found an improvement is a pooled review of several trials; the row that found no difference is a single study.

The row that found no difference ran longer (3 months) than the row that found an improvement (4 weeks).

The row that found no difference is newer (2026) than the row that found an improvement (2017).

The rows

1 improved · 1 no difference
  1. Grade CHaemoglobin in iron-deficiency anaemia of pregnancy · Improved

    Meta-analysis, 4 studies · n 600 · 2017 · Pregnant women with iron-deficiency anaemia

    Daily oral lactoferrin · 4 weeks (primary outcome)

    Haemoglobin rose 0.77 g/dL more than with ferrous sulfate overall (no difference in mild anaemia), with significantly fewer gastrointestinal side effects.

    Row on the Lactoferrin page · PubMed 29059584 (opens PubMed)

  2. No effectHaemoglobin in iron-deficiency anaemia (non-pregnant women) versus ferrous sulfate · No difference

    RCT · n 349 · 2026 · Non-pregnant women aged 18 to 49 with iron-deficiency anaemia (Dhaka, Bangladesh)

    200 mg/day or 400 mg/day lactoferrin versus 60 mg/day elemental iron · 12 weeks

    Haemoglobin changed by −0.2 g/dL (200 mg) and 0.0 g/dL (400 mg) versus +1.1 g/dL with ferrous sulfate; both lactoferrin doses were inferior to iron (difference about −1.1 to −1.2 g/dL). Adverse events were comparable.

    Row on the Lactoferrin page · PubMed 42302886 (opens PubMed)

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