4 ms·
Just looking at macro fat breakdowns (per cronometer.com) it's definitely one of the better vegetable oils, but still not awesome -- 28% PUFA, 2/1 n6/n3. Which
by dilap 4y ago
Just looking at macro fat breakdowns (per cronometer.com) it's definitely one of the better vegetable oils, but still not awesome -- 28% PUFA, 2/1 n6/n3. Which isn't terrible, but like 2.5x the PUFA content of olive oil, and way more than a cooking fat like tallow or butter.
(I'm assuming in the above your goal is to keep PUFA low and n6/n3 balanced.)
There's also some animal studies w/ canola oil specifically that showed adverse effects, though I don't have them at hand.
Just looking at the characterization of fatty acids by unsaturatedness is omitting details which can matter -- the particular makeup of the fats (chain length -- a fatty acid w/ the same unsaturatedness can have varying effects on metabolism at different chain lengths; cis vs trans) as well as all the other chemicals that are in the oil, whether beneficial or harmful.
As one example, canola oil used to contain high levels of erucic acid, which is a 9-chain monounsaturated fat generally considered toxic. Over time the levels have gotten lower.
You might enjoy this video showing how canola oil is made:
https://www.youtube.com/watch?v=Cfk2IXlZdbI https://www.youtube.com/watch?v=Cfk2IXlZdbI
- deleted 4y ago[deleted]
- landemva 4y ago> vegetable oils Canola (Canadian Oil) or rape seed was used as an industrial lubricant oil. The first human lifecycle testing is now showing results. I avoid consuming it. https://www.sciencedirect.com/topics/neuroscience/rapeseed https://www.sciencedirect.com/topics/neuroscience/rapeseed
- elevaet 4y agoIts use as a lubricant is irrelevant to the discussion.
- kritiko 4y agorapeseed is a brassica - do you avoid broccoli, cauliflower, mustard, brussels sprouts, etc?
- gamblor956 4y agoCoconut oil and olive oil are also used as lubricant oils. On a similar note, note, water is used as a lubricant, an industrial cleaner, an industrial solvent, and has strong corrosive properties. Too much water consumption can cause death.
- landemva 4y agoI agree humans are well adapted to water consumption. The water from my well is delicious.
- feet 4y agoHumans are well adapted to consuming fatty acids, in fact there are some that are essential to our diets because we don't have the enzymes to produce double bonds at specific locations
- dilap 4y agoRay Peat has an interesting essay questioning if they are really essential. https://raypeat.com/articles/articles/unsaturatedfats.shtml https://raypeat.com/articles/articles/unsaturatedfats.shtml
- feet 4y agoI question his expertise https://ods.od.nih.gov/factsheets/Omega3FattyAcids-HealthProfessional/ https://ods.od.nih.gov/factsheets/Omega3FattyAcids-HealthPro...
- dilap 4y agoI don't know if he's right or not, but he's talking about specific, concrete studies -- real data. The page you link to say says: > A deficiency of essential fatty acids—either omega-3s or omega-6s—can cause rough, scaly skin and dermatitis [5]. Then when we go look at [5] we get: > Institute of Medicine, Food and Nutrition Board. Dietary reference intakes for energy, carbohydrate, fiber, fat, fatty acids, cholesterol, protein, and amino acids (macronutrients). Washington, DC: National Academy Press; 2005. That's not actual data. Presumably the reference intakes are based on some sort of data (would take some digging to find out, since it's incoveniently not hyperlinked) -- I might speculate it's based on exactly the 1929 Burr study that Peat is arguing was mistaken. Hard to know though, without some digging. Do you think PUFA is essential because it's what the NIH tells you, or because of specific experiments that have been done which demonstrate it?
- hombre_fatal 4y agoIndustrial application doesn't mean something is unfit for consumption: https://en.wikipedia.org/wiki/Olive_oil#Other https://en.wikipedia.org/wiki/Olive_oil#Other
- feet 4y agoI do not have a goal to minimize PUFA intake, I don't understand why I should have that ad a goal. Can you cite any sources for why PUFAs are bad?