[mathiasrw]

So important info for people who wants to understand our current health crises.

This, and the normalization of frying with plant based oils that denaturalize at those temperature seems to me equivalent to how the romans society was led poisoning themselves because most kitchenware like spoons and pots were made of led.

[mauflows]

Can you expound on the plant based oil part?

[erdewit]

Most seed-based oils contain a lot of linoleic acid, for example sunflower oil has 65%. It is an essential fatty acid, but the average consumption nowadays is way too high. It oxidizes easily which leads to health problems when too much of it is incorporated into cell and mitochondrial membranes.

Plant oils such as those from olive, coconut, palm, cocoa or avocado have much less linoleic acid.

[ip26]

Plant based oils often have low oxidation temperatures, and oxidized oils are not particularly healthy. Saturated fats usually have higher oxidation temperatures making them more suited to high temperature cooking.

[fantod]

What qualifies as plant-based? I always use peanut oil because I heard it has a high smoke point.

[ip26]

Peanut oil is a pretty good choice for high heat pan frying. The makeup is really what matters- saturated, polyunsaturated, monounsaturated, etc.

Although for what it’s worth my life got a lot better when I learned roasting, braising, simmering, reductions, etc and stopped trying to pan fry everything.

[majidazimi]

EVOO, Ghee (from grass fed butter), Coconut oil, Avocado oil, Sesame oil, Tallow, Lard and Butter (from grass fed animal) is all that you should be eating. Everything else belongs to trash bin.

[bitkrieg]

Polyunsaturated fats have many unstable double carbon bonds, so especially under heat a wide range of new fat compounds form which were never present in the human diet.

[hypertele-Xii]

Frying vegetable oil in a polytetrafluoroethylene-coated aluminium pan.

[f6v]

Is it fine if I use olive oil? Italians seem to have exceptional health.

[hntrader]

Yeah, extra virgin olive oil is one of the good ones and there's a sizeable research literature which backs that up. You can consume it liberally. Make sure you buy it in a dark glass container (since it's UV sensitive) and it should leave an itchy feeling in your throat after you swallow a teaspoon. Olive oil fraud is rather common and this is a method to detect that. There's some sites which analyse EVOO and rank them based on the above factors, I just pick the best brands from that list.

Common advice is to avoid seed oils - the cheap stuff used in restaurants such as canola oil. We didn't evolve with this stuff, it contributes to inflammation and is generally not good for you, but is used because it's cheap and not illegal yet.

[Pyramus]

> Common advice is to avoid seed oils - the cheap stuff used in restaurants such as canola oil.

I'd say common advice is to avoid cheap (refined) oils rather than seed oils. Point in case linseed oil is arguably even healthier than olive oil. Sunflower oil (cold pressed) is a great source of Vitamin E (in moderation because of omega 6:3 ratio). Cold pressed rapeseed oil (canola) is great, too. So is pumpkin seed oil ...

[amit9gupta]

The problem with olive oil is that because of its' popularity it is often adulterated (with seed-oils, often at source). So do your research before you buy.

[odiroot]

Yes, as long as you're not heating it until it smokes.

[ip26]

It doesn’t seem like Italian cooking has much high temperature pan frying.

[buu700]

No. Olive oil is great, but don't put it in your deep fryer. I like to use ghee, personally.

[xwdv]

NO. Different oils are meant to be cooked at different temperatures. Find the right one for your use case.

[fuzzfactor]

had to upvote

I agree, except I state it differently.

Chefs are supposed to cook at different temperatures when using different oils.

The real problem with olive oil for frying is the cost of the oil compared to lesser products.

There are also natural compounds in the virgin olive oil that can be destroyed by heat so it is considered beneficial to consume it without previous heating in things like salads or bread dipping to gain any benefits from components which are not in other oils.