priors.science/reviews/ultra-processed-foods

Ultra Processed Foods

The current evidence on 10 claims, ordered from most established to most contested. Each score is the panel’s evidence certainty — how firmly the literature supports the claim as stated.

10claims tracked

116primary papers reviewed

10 Aug 2026latest evidence review

Weeklyre-scored against new papers

0 Established · 4 Likely · 5 Uncertain · 1 Doubtful | four-reviewer panel · PICO Framework

ClaimStandingEvidence certaintyCorpus

Ultra-processed food promotes weight gainCardiometabolicLikely72%23

Ultra-processed food diets raise energy intakeMechanism MentalLikely71%20

Ultra-processed food raises cardiovascular disease riskCardiometabolicLikely70%28

Ultra-processed food raises type 2 diabetes riskCardiometabolicLikely70%25

Ultra-processed food raises colorectal cancer riskMortality CancerUncertain67%20

Ultra-processed food raises all-cause mortalityMortality CancerUncertain62%21

Ultra-processed food raises hypertension riskCardiometabolicUncertain60%25

Ultra-processed food raises depression riskMechanism MentalUncertain60%22

Ultra-processed food raises overall cancer riskMortality CancerUncertain54%24

Ultra-processed food raises inflammation markersMechanism MentalDoubtful49%19

Track Ultra Processed Foods.

These claims are re-scored against new papers every week. Track this topic for the full review, including each claim’s challenge and the papers behind it.

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Standing — what the evidence certainty means

Established≥ 85%Strong, consistent evidence. Unlikely to change.

Likely70–84%Well supported, with some gaps or indirect evidence.

Uncertain50–69%Mixed or limited evidence. Genuinely open.

Doubtful30–49%Little support; the weight of evidence leans against it.

Refuted< 30%The evidence contradicts it — confidently false as stated.