Maternal antibodies in breast milk survive infant digestion to provide immunity.

the verdict

SUPPORTED

the evidence backs this

Recorded sources

2 sources for · 0 against

Counts group repeated records of the same source within each side. They do not measure evidence strength or source independence.

Maternal antibodies present in breast milk, particularly secretory IgA, possess mechanisms that allow them to partially survive the harsh environment of the infant gastrointestinal tract to provide mucosal immunity.

The analysis

The claim is specific, testable, and supported by immunological findings showing that breast milk antibodies like secretory IgA resist parts of infant digestion to protect against pathogens.

Evidence for · 2

Survival of vaccine-induced human milk SARS-CoV-2 IgG and IgA immunoglobulins across simulated human infant gastrointestinal digestion

Recorded source metadata

Myrtani Pieri, Vicky Nicolaidou, Irene Paphiti, Spyros Pipis, Kyriacos Felekkis, Christos Papaneophytou. Survival of vaccine-induced human milk SARS-CoV-2 IgG and IgA immunoglobulins across simulated human infant gastrointestinal digestion. 2021. https://doi.org/10.1101/2021.06.17.21259021

Paper 1 demonstrates that certain vaccine-induced antibodies (such as IgA) in human milk can partially resist the gastric phase of infant digestion.

Source citation format

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More for · 1

Breast feeding and the intestinal microflora of the infant--implications for protection against infectious diseases.

Recorded source metadata

A E Wold, I Adlerberth. Breast feeding and the intestinal microflora of the infant--implications for protection against infectious diseases.. 2000. https://doi.org/10.1007/0-306-46830-1_7

Paper 7 notes that secretory IgA in breast milk protects infants by coating intestinal bacteria and blocking interactions without being completely destroyed.

Source citation format

The paper trail · every fact has a biography

first checked01 Aug 2026

judged → SUPPORTED · 7801 Aug 2026

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