causal
Analysis v1
Strong Opposition
If you heat up rapeseed and grape seed oils really hot for 20 days, they start to smell bad because they break down easily — but coconut oil doesn’t change much, because it’s more stable.
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6
Evidence from Studies
Supporting (0)
0
Community contributions welcome
No supporting evidence found
Contradicting (1)
6
Community contributions welcome
6
Oxidative Stability and Genotoxic Activity of Vegetable Oils Subjected to Accelerated Oxidation and Cooking Conditions
Cross-Sectional Study
In Vitro
2023 May 29The study did heat oils at 65°C for 20 days like the claim, and it found that rapeseed and grape seed oils had lots more aldehydes — which matches. But it didn’t clearly say what happened to coconut oil at that temperature, so we can’t confirm it had 'minimal effect' like the claim says.
Gold Standard Evidence Needed
According to GRADE and EBM methodology, here is what ideal scientific evidence would look like to definitively prove or disprove this specific claim, ordered from strongest to weakest evidence.