When olive oil gets super hot, the main antioxidant (alpha-tocopherol) disappears completely, but other minor antioxidants (beta and gamma) stick around a bit longer — and some oils protect them better than others.

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Pro

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Against

Evidence from Studies

Supporting (1)

6

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6

Effect of Heating Temperature of High-Quality Arbequina, Picual, Manzanilla and Cornicabra Olive Oils on Changes in Nutritional Indices of Lipid, Tocopherol Content and Triacylglycerol Polymerization Process

Cross-Sectional Study

In Vitro

2023 May 22

The study heated olive oil at 200°C and found that one type of vitamin (α-tocopherol) disappeared completely, while two others (β and γ) lasted longer — just like the claim says.

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No contradicting evidence found

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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.

Source Study

Effect of Heating Temperature of High-Quality Arbequina, Picual, Manzanilla and Cornicabra Olive Oils on Changes in Nutritional Indices of Lipid, Tocopherol Content and Triacylglycerol Polymerization Process

Score: 6

DOI: 10.3390/molecules28104247

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When you heat olive oil really hot (200°C), the good antioxidants called tocopherols disappear—some oils lose them completely, while others like Picual and Cornicabra keep a little bit left.

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