priors.science/reviews/artificial-sweeteners

Artificial Sweeteners

The current evidence on 12 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.

12claims tracked
112primary papers reviewed
5 Jul 2026latest evidence review
Weeklyre-scored against new papers
0 Established · 1 Likely · 8 Uncertain · 3 Doubtful  |  four-reviewer panel · PICO Framework
SignalClaimStandingEvidence certaintyCorpus
StableNon-nutritive sweetener substitution reduces body weightWeightLikely71%12
StableSweeteners linked to type 2 diabetesGlycaemiaUncertain46%12
StableNon-nutritive sweeteners alter gut microbiomeMicrobiomeUncertain45%12
StableMicrobiome shift impairs glucose toleranceMicrobiomeUncertain44%12
StableSweetener intake linked to weight gainWeightUncertain44%12
StableSweetness-calorie uncoupling disrupts appetiteAppetiteUncertain43%12
StableSweeteners linked to cardiovascular diseaseCardioUncertain42%12
StableErythritol linked to cardiovascular eventsCardioUncertain41%12
StableNon-nutritive sweeteners increase appetite or energy intakeAppetiteUncertain40%12
StableNon-nutritive sweeteners acutely raise glucose or insulinGlycaemiaDoubtful38%12
StableAspartame increases human cancer riskSafetyDoubtful33%12
StableSaccharin causes human bladder cancerSafetyDoubtful20%12
Standing — what the evidence certainty means
Established≥ 85%Strong, consistent evidence. Unlikely to change.
Likely65–84%Well supported, with some gaps or indirect evidence.
Uncertain40–64%Mixed or limited evidence. Genuinely open.
Doubtful15–39%Little support; the weight of evidence leans against it.
Refuted< 15%The evidence contradicts it — confidently false as stated.
Recent signal
strengthenedNew evidence raised the certainty since the last review.
weakenedNew evidence lowered the certainty since the last review.
newA claim added to the review recently.
StableNo recent change to the standing.
Standing, evidence certainty and corpus are always shown. The study behind each move, why it moved, and the sceptic’s challenge are delivered to subscribers.
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