The Claim
Replacing saturated fat with mostly n-6 polyunsaturated fat does not significantly affect total mortality in adults, with relative risks of 1.00 (95% CI 0.90–1.10) across all trials and 1.07 (95% CI 0.90–1.26) in adequately controlled trials.
What the research says
Supports is higher
Support is ahead, but a single strong opposing study can change this.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
Swapping saturated fats (like butter) with certain vegetable oils doesn't change how long people live overall, according to research studies.
See the scientific wording
Replacing saturated fat with mostly n-6 polyunsaturated fat does not significantly affect total mortality in adults, with a relative risk of 1.00 (CI 0.90–1.10) when including all trials and 1.07 (CI 0.90–1.26) in adequately controlled trials, indicating no impact on overall death rates.
What the research says
1 studyThis study looked at the same diet change as the claim and found it doesn't change how long people live, which matches what the claim says.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.