quantitative
Analysis v1
Strong Support
When you heat coconut, rapeseed, and grape seed oils at a high temperature for a long time, they produce way more smelly chemicals—up to 35 times more in coconut oil—and most of those smells come from aldehydes, which are signs the oil is breaking down from the heat.
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Evidence from Studies
Supporting (1)
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Community contributions welcome
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Oxidative Stability and Genotoxic Activity of Vegetable Oils Subjected to Accelerated Oxidation and Cooking Conditions
Cross-Sectional Study
In Vitro
2023 May 29Scientists heated these three oils at a high temperature for a long time, and found that they produced way more smelly, oxidized chemicals — especially aldehydes — than before heating, just like the claim said.
Contradicting (0)
0
Community contributions welcome
No contradicting evidence found
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.