Contested facts · veracity-3pt · fact-dietary-fat-01

Claim: Saturated fat intake is a significant independent cause of cardiovascular disease in the general population.

0.33

Divergence

0.80

Avg stability

Refusal rate

Models

Where each model stands

CCG

refutedcontestedsupported

ChatGPT modal supported [contested, contested, supported, supported, supported] · stability 0.60

1 contested 0.90 The answer says SFA raises LDL (a causal driver of CVD) and replacing SFA with PUFA reduces risk, but adds important caveats: the effect is largely mediated through LDL and therefore not ‘independent’ of lipid metabolism, and associations depend on replacement nutrients and food sources.
2 contested 0.85 The answer says SFA “contributes to CVD risk” and raises LDL (biological plausibility) but explicitly states that calling it an unambiguous “significant independent cause” for the whole general population is inaccurate and that effects depend on replacement nutrient and food source.
3 supported 0.86 Answer: “Yes—saturated fat intake contributes causally to atherosclerotic cardiovascular disease largely through raising LDL cholesterol,” while noting effects depend on what replaces SFA.
4 supported 0.92 The answer states: “Saturated fat intake is a meaningful causal contributor to atherosclerotic cardiovascular disease because it raises LDL cholesterol, a proven causal risk factor,” while noting nuances about replacement nutrients and food sources.
5 supported 0.87 The answer states the preponderance of evidence and major guidelines treat higher saturated‑fat intake as a causal contributor to ASCVD, noting “Saturated fat intake contributes to cardiovascular disease risk largely via its effect on LDL‑cholesterol.”

Claude modal contested [contested, refuted, contested, contested, contested] · stability 0.80

1 contested 0.92 The answer states the claim 'overstates the evidence' and argues it's 'more complex than' a direct causal relationship. It cites studies finding 'no clear independent association' when confounding factors are controlled, and characterizes saturated fat as 'one modifiable factor among many' rather than a 'significant independent cause.' This represents a fundamental disagreement with the claim's fr
2 refuted 0.85 The answer states the claim is 'substantially overstated' and that saturated fat shows 'weak or no independent association' with cardiovascular disease when controlling for confounders. It argues the traditional relationship has 'not held up to modern scrutiny' and that moderate saturated fat intake is 'likely neutral or benign for most people.'
3 contested 0.85 The answer states the claim is 'more nuanced than stated' and that saturated fat's 'independent effect is smaller than previously thought once confounding variables are controlled.' It acknowledges correlation and some evidence but refutes the characterization of it being a 'significant independent cause,' proposing a more qualified alternative claim instead.
4 contested 0.92 The answer states the claim is 'more nuanced than stated' and 'oversimplified as stated. The relationship is real but more conditional and less causal than the claim suggests.' It acknowledges some supporting evidence while emphasizing contested aspects like confounding variables, mixed meta-analyses results, and the importance of context and food type over saturated fat reduction alone.
5 contested 0.85 The answer explicitly states the claim is 'more nuanced than a simple true/false' and presents evidence both supporting and complicating the claim. It concludes that saturated fat 'contributes to CVD risk' but is 'neither the sole cause nor equally important for all individuals,' positioning the claim as partially but not fully supported.

Gemini modal contested [contested, contested, contested, contested, contested] · stability 1.00

1 contested 0.95 The answer states that the claim is 'a subject of ongoing debate within nutritional science and cardiology' and presents both evidence supporting the diet-heart hypothesis and arguments challenging its role as an independent cause.
2 contested 0.95 The answer presents the claim as a subject of 'ongoing debate,' noting that while major health organizations support limiting saturated fat via the LDL pathway, several meta-analyses and experts challenge whether it acts as an independent cause outside the context of overall diet and replacement nutrients.
3 contested 0.95 The answer presents the claim as a 'subject of ongoing debate', detailing both the traditional evidence supporting it and modern evidence challenging its independence and status as an oversimplification.
4 contested 0.95 The answer notes that this is 'one of the most extensively researched and debated topics' and concludes that calling it a 'significant independent cause' oversimplifies the evidence, presenting both the mainstream consensus and substantial counter-evidence.
5 contested 0.95 The answer states that the claim 'is a central subject of ongoing debate in nutritional science and cardiology' and contrasts evidence supporting the link with multiple critiques and nuances regarding replacement nutrients and food matrix effects.

Change over time

Moved since the prior run (canon-2026-W42). ChatGPT: contested → supported.

Every stance label is a derived judgment over the model's free-text answer, kept auditable against the original transcript in the run's raw data. Method: /methodology.