The Claim

Genetically predicted levels of sucralose metabolites are nominally associated with an increased odds of cardioembolic stroke (OR = 1.14, 95% CI: 1.02–1.27), but this association reverses direction and becomes protective (OR = 0.73, p = 0.024) after adjusting for blood glucose levels, suggesting that glucose metabolism may influence or confound the observed relationship.

Source: Genetically Predicted Artificial Sweeteners and Stroke Susceptibility: A Multivariable Mendelian Randomization Study.

What the research says

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Supports
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Challenges
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These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.

Correlation
1 study reviewed
In plain English

Scientists found a link between how our genes process artificial sweeteners like sucralose and a type of stroke, but that link seems to flip around when blood sugar is taken into account — meaning sugar levels might be the real player here.

See the scientific wording

Genetically predicted levels of sucralose metabolites are nominally associated with cardioembolic stroke, with an odds ratio of 1.14 (95% CI: 1.02–1.27), but the direction of association reverses after adjusting for blood glucose levels (OR = 0.73, p = 0.024), suggesting glucose metabolism may influence or confound this relationship.

What the research says

1 study
  1. Study: Genetically Predicted Artificial Sweeteners and Stroke Susceptibility: A Multivariable Mendelian Randomization Study.

    The study looked at how genetic markers for sucralose in the body relate to stroke risk and found that while there’s a slight initial link to one type of stroke, it flips to a lower risk after considering blood sugar levels, just like the claim says.

Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies

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