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the claim

Eating tomato ketchup causes cancer in humans.

the verdict
INSUFFICIENT LEANING
Recorded sources
0 sources for · 4 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 eating tomato ketchup causes cancer in humans?

Unclear. The retrieved items do not directly test whether eating tomato ketchup causes cancer in humans. A few sources associate tomato or lycopene intake with lower cancer mortality or present ketchup as a healthier product, which partially counters the claim but does not settle it.

Verdict: PARTIAL LEAN · 0 sources for, 4 against · Last checked

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

Evidence against · 4
A high consumption of tomato and lycopene is associated with a lower risk of cancer mortality: results from a multi-ethnic cohort -
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A high consumption of tomato and lycopene is associated with a lower risk of cancer mortality: results from a multi-ethnic cohort - PMC Lock. (n.d.). pmc.ncbi.nlm.nih.gov. https://doi.org/10.1017/S1368980019003227

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More against · 3
Development and Formulation of Synbiotic Tomato Ketchup Enriched with Beetroot
2026
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Soni, D. & Prathapan, A. (2026). Development and Formulation of Synbiotic Tomato Ketchup Enriched with Beetroot. doi.org. https://doi.org/10.2139/ssrn.6193099

The Canadian Encyclopedia Of Natural Medicine
2013
Get citation
Torkos, S. (2013). The Canadian Encyclopedia Of Natural Medicine. play.google.com. https://play.google.com/store/books/details?id=COMIHBhTh1gC&source=gbs_api

Nutrition
2013
Get citation
Brewer, S. (2013). Nutrition. play.google.com. https://play.google.com/store/books/details?id=ehq9DwAAQBAJ&source=gbs_api

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