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the claim

Drinking more than 200 mg of caffeine daily during pregnancy increases the risk of miscarriage.

the verdict
CONTESTED PARTIAL
Recorded sources
5 sources for · 1 against

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

Is it true that drinking more than 200 mg of caffeine daily during pregnancy increases the risk of miscarriage?

Partly. Evidence is mixed and only partial: a 2022 dose-response meta-analysis and a survey report link caffeine or >200 mg/day intake to pregnancy loss, while a 2011 review found no apparent increase in miscarriage risk. None of the retrieved items isolates the specific 200 mg/day threshold for miscarriage in humans.

Verdict: CONTESTED PARTIAL · 5 sources for, 1 against · Last checked

The private library was unavailable for some searches in this check. Missing library results are not evidence against the claim.

Evidence for · 5
Impacts of Caffeine during Pregnancy
2020
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Jingjing, Q., Qi, C., & M., W. S. (2020). Impacts of Caffeine during Pregnancy. authors.library.caltech.edu. https://doi.org/10.1016/j.tem.2019.11.004

Evidence against · 1
Caffeine
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Caffeine. (n.d.). en.wikipedia.org. https://en.wikipedia.org/wiki/Caffeine

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More for · 4
Relationship between maternal caffeine and coffee intake and pregnancy loss: A grading of recommendations assessment, development, and evaluation-assessed, dose-response meta-analysis of observational studies -
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Relationship between maternal caffeine and coffee intake and pregnancy loss: A grading of recommendations assessment, development, and evaluation-assessed, dose-response meta-analysis of observational studies - PMC Lock. (n.d.). pmc.ncbi.nlm.nih.gov. https://doi.org/10.3389/fnut.2022.886224

The modifiable and nonmodifiable risk factors for miscarriage
2016
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The modifiable and nonmodifiable risk factors for miscarriage. (2016). doi.org. https://doi.org/10.4103/2090-6021.200178

Caffeine, alcohol, khat, and tobacco use during pregnancy in Butajira, South Central Ethiopia
2020
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Alamneh, A. A., Endris, B. S., & Gebreyesus, S. H. (2020). Caffeine, alcohol, khat, and tobacco use during pregnancy in Butajira, South Central Ethiopia. doi.org. https://doi.org/10.1371/journal.pone.0232712

Mother's Caffeine Ingestion Affects Fecundity and Offspring Birth Weight in Murine Models
2017
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Joshua, O. O., Joshua, A., & Samson, O. O. (2017). Mother's Caffeine Ingestion Affects Fecundity and Offspring Birth Weight in Murine Models. zenodo.org. https://doi.org/10.9734/AJOB/2017/34230

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