Thermally oxidized sunflower oil diet alters leptin/ghrelin balance and lipid profile in rats: Possible role of reactive aldehydes in dyslipidemia — Daily consumption of oxidized oils might be associated with the occurrence of dyslipidemia, fatty liver and the development of leptin resistance.
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The only way you’d get oil this hot is improperly pan frying and honestly just burning your food. The question is how much of these allegedly harmful chemicals are produced at lower temperatures.
So would this mean things like chips and fries are bad for you for other reasons than just calories and too much refined carbohydrates?
Not really because you don’t use that high of heat when frying.
Who in their right mind heats oil to 300°C for 30 minutes minimum (!)? Of course this leads to oxidation products like peroxides and aldehydes
The temperature speeds up the process, but high temperatures aren't necessary to kick start oxidation. Unsaturated lipids oxidise at room temperature. If there's oxygen, there will be oxidation products
you have a point - however, deodorization temperatures for the refinement of PUFA-rich cooking oils are processed at temperatures upwards of 230-260˚C... and even these temperatures result in the production of advanced lipoxidation end products (ALEs)
Fast food would like a word with you.
Do you think the heating element in a frying station just stays at 230C? Of course it doesn’t. It is likely 300+C in order to heat up gallons of oil to 230C. All of the oil doesn’t get to 300C, but certainly the oil in contact with the heating element does
Any restaurant that fries food.
Polyunsaturated fats are the most susceptible to this and arterry plaques contain quite a bit of oxidized poly unsaturated fats.
I thought saturated fats were bad and clogged arteries?
Thence the biodiesel industry emerged.
So, no daily KFC visit?
How is this NOT in the front page??
Because no one actually heats oil to those temperatures.
Sooo just dead russian oil or other cooking oils as well?