I agree this article is pretty typical of what I have found too and it is full of errors and pop drivel.
I shall await Roxanne McDonald, Body Mind Institute certified nutrition and raw food expert, latest pearls of wisdom with zero anticipation.
Roxanne’s newly published book:
The Real Skinny on Gluten-Free Living: 8 Simple Steps to Break up with Gluten 
Sorry folks for the wander this my last post on the subject in this thread.
Good. But first read this drivel
What is Canola oil:
source:
rape | plant
Rape (Brassica napus, variety napus), also called rapeseed or colza, plant of the mustard family (Brassicaceae), grown for its seeds, which yield canola, or rapeseed, oil. Canola oil is variously used in cooking, as an ingredient in soap and margarine, and as a lamp fuel (colza oil). The esterified form of the oil is used as a lubricant for jet engines and can be made intobiodiesel. The seeds are also used as bird feed, and the seed residue after oil extraction is used for fodder. The plant can be grown as a cover crop and green manure
Health Effects:
Source:
Rapeseed - Wikipedia, the free encyclopedia
Rapeseed oil is one of the oldest vegetable oils, but historically was used in limited quantities due to high levels of erucic acid, which is damaging to cardiac muscle of animals, and glucosinolates, which made it less nutritious in animal feed. Rapeseed oil can contain up to 54% erucic acid. Food-grade canola oil derived from rapeseed cultivars, also known as rapeseed 00 oil, low erucic acid rapeseed oil, LEAR oil, and rapeseed canola-equivalent oil, has been generally recognized as safe by the United States Food and Drug Administration. Canola oil is limited by government regulation to a maximum of 2% erucic acid by weight in the USA and 5% in the EU,[27]with special regulations for infant food. These low levels of erucic acid are not believed to cause harm in human neonates.
In 1981, a deadly outbreak of disease in Spain, known as toxic oil syndrome, was caused by the consumption of colza oil (a cousin of rapeseed oil procured from a similar species of rapa) for industrial use that was fraudulently sold as olive oil to be consumed in cooking, salads, and other foods. Symptoms appeared as a typical pneumonia with interstitial infiltrates on chest X-ray, complicated by pulmonary hypertension in a significant number of cases.
Rapeseed pollen contains known allergens. Whether rape pollen causes hay fever has not been well established, because rape is an insect-pollinated (entomophilous) crop, whereas hay fever is usually caused by wind-pollinated plants. The inhalation of oilseed rape dust may cause asthma in agricultural workers.
Source:
http://www.hsph.harvard.edu/nutritionsource/2015/04/13/ask-the-expert-concerns-about-canola-oil/
As with many highly processed food products there are concerns about the safety of canola oil.
First is the use of a solvent such as hexane to extract the maximum amount of oil from the seed. Hexane is a very volatile solvent (boiling point 69ºC, or 156ºF) with a very low toxicity (LD50 in rats of 49.0 milliliters per kilogram). Hexane has been used to extract oils from plant material since the 1930s, and “there is no evidence to substantiate any risk or danger to consumer health when foods containing trace residual concentrations of hexane are ingested” (1).
It has been estimated that refined vegetable oils extracted with hexane contain approximately 0.8 milligrams of residual hexane per kilogram of oil (0.8 ppm) (2). It is also estimated that the level of ingestion of hexane from all food sources is less than 2% of the daily intake from all other sources, primarily gasoline fumes. There appears to be very little reason for concern about the trace levels of hexane in canola oil.
Another concern is the report that canola oil might contain trans-fats that have been linked with significant health problems. In fact, canola oil does contain very low levels of trans-fat, as do all oils that have been deodorized. Deodorization is the final step in refining ALL vegetable oils. This process produces the bland taste that consumers want.
As a comparison, the fat of cattle and sheep, as well as the milk obtained from cows, contain about 2-5% of natural trans-fat as a percent of the total fat (3). When canola oil is deodorized it is subjected to temperatures above 200ºC (as high as 235ºC, 455°F) under vacuum for various lengths time to remove volatile components such as free fatty acids and phospholipids. During exposure to these high temperatures a small amount of the unsaturated fatty acids, especially the essential ω-6-linoleic and ω-3–linolenic acid, are transformed into trans-fatty acid isomers. Because of earlier studies showing that even quite low levels of trans isomers of ω-3–linolenic can have adverse effects of blood cholesterol fractions, the processes used for deodorization have been modified to limit the production of these compounds.
A consequence of transforming some of the natural unsaturated fatty acids to trans-fat during the deodorization step is a reduction in the content of beneficial ω-3–fatty acids.
Heating bleached canola oil at 220°C for ten hours reduces the content of linolenic acid by almost 20% (5). Keep in mind that canola oil sold in the supermarket still contains 9-11% natural ω-3–linolenic acid.
The same transformation occurs during commercial deep-fat frying operations with canola oil. Thus canola oil used to fry French fries for seven hours per day for seven days at 185°C (365°F) resulted in increasing the total trans-fatty acid content of the oil from 2.4% to 3.3% by weight of total fat (6).
Of potentially greater concern is the formation of oxidation products of polyunsaturated fatty acids during prolonged commercial deep-fat frying. But this is less of a concern for canola oil than for oils with higher levels of more readily oxidized polyunsaturated fat such corn, soybean, sunflower, and safflower oils.
Source:
Canola Oil: Harmful Cooking Oil - Processed Vegetable Oil
Initially, the Canola Council of Canada had problems getting GRAS (Generally Recognized as Safe) status by the US Food and Drug Administration in order to market their oil in the US but it was finally granted in 1985. It is rumored that the Canadian government spent $50 million to obtain it. Even though canola oil now has GRAS status, no long-term studies on humans have been done, yet supporters state, “There is no credible scientific evidence showing that canola oil is harmful to humans.”
Since canola oil mimics healthy properties of other oils, including omega-3 fats (as found in fish & flax), and monounsaturated fats (as found in olive oil), proponents feel as though they had made a dream-come-true product. Canola oil eventually began to appear in the recipes of health books such as those by Andrew Weil and Barry Sears. The popularity of the Mediterranean diet and olive oil at the time was spreading and many were beginning to substitute their olive oil for canola oil. It was rumored that most major publishers would not accept cookbooks unless they included canola in the recipes.
But here’s the main problem with canola oil, and why you should think twice before using it –canola oil is highly refined. Like high fructose corn syrup that is not “corn sugar” once it is extracted and processed, canola oil also has to go through a similar regimen. The oil is removed by a combination of high temperature mechanical pressing and solvent extraction. Traces of the solvent (usually hexane) remain in the oil, even after considerable refining. Canola oil goes through the process of caustic refining, bleaching and degumming – all of which involve high temperatures or chemicals of questionable safety. And because itis high in omega-3 and 6 fatty acids, (11% and 21% respectively) which easily become rancid and foul-smelling when subjected to oxygen and high temperatures, it must be deodorized. The standard deodorization process removes a large portion of the omega-3 fatty acids by turning them into trans fatty acids. The Canadian government lists the trans content of canola at a minimal 0.2 percent, but it is speculated that they are actually much higher due to the processing. This processing is much different from that of olive oil, which most often is first cold pressed to reduce the oxidation of the oil. Harmful chemicals and fatty acid-altering processing means do not occur with olive oil as they do with canola oil.
Another major problem with canola oil is that 80% of the acres sown are genetically modified canola, and it’s not the GMO type of product that has been developed for the benefit of the species of plant, but for the benefit of the herbicide. First introduced to Canada in 1995, genetically modified canola has become a point of controversy and contentious legal battles as Monsanto’s “Roundup Ready” herbicide allows farmers to drench both their crops and crop land with the herbicide so as to be able to kill nearby weeds (and any other green thing the herbicide touches) without killing their crop. The effects of this herbicide on the environment as well as the health of individuals who consume the products have been questioned. (Read more on pesticides and herbicides here.) Superweeds have begun to develop, and much like the overuse of antibiotics, eventually a resistance to the chemical builds up, and a more powerful one must be used. Monsanto is already working on a stronger herbicide (called SmartStax) which they hope to debut soon.
So should you be using canola oil? I say, definitely not. Doing so is risky...
You'll love this one;
Source:
The Great Con-ola - Weston A Price
Canola oil is a poisonous substance, an industrial oil that does not belong in the body. It contains “the infamous chemical warfare agent mustard gas,” hemagglutinins and toxic cyanide-containing glycocides; it causes mad cow disease, blindness, nervous disorders, clumping of blood cells and depression of the immune system. This is what detractors say about canola oil.
How is the consumer to sort out the conflicting claims about canola oil? Is canola oil a dream come true or a deadly poison? And why has canola captured so large a share of the oils used in processed foods?
HIDDEN HISTORY
Let’s start with some history. The time period is the mid-1980s and the food industry has a problem. In collusion with the American Heart Association, numerous government agencies and departments of nutrition at major universities, the industry had been promoting polyunsaturated oils as a heart-healthy alternative to “artery-clogging” saturated fats. Unfortunately, it had become increasingly clear that polyunsaturated oils, particularly corn oil and soybean oil, cause numerous health problems, including and especially cancer.1
The industry was in a bind. It could not continue using large amounts of liquid polyunsaturated oils and make health claims about them in the face of mounting evidence of their dangers. Nor could manufacturers return to using traditional healthy saturates–butter, lard, tallow, palm oil and coconut oil–without causing an uproar. Besides, these fats cost too much for the cut-throat profit margins in the industry.
...
Canadian researchers looked at LEAR oils again in 1997. They found that piglets fed milk replacement containing canola oil showed signs of vitamin E deficiency, even though the milk replacement contained adequate amounts of vitamin E.14 Piglets fed soybean oil-based milk replacement fortified with the same amount of vitamin E did not show an increased requirement for vitamin E. Vitamin E protects cell membranes against free radical damage and is vital to a healthy cardiovascular system. In a 1998 paper, the same research group reported that piglets fed canola oil suffered from a decrease in platelet count and an increase in platelet size.15 Bleeding time was longer in piglets fed both canola oil and rapeseed oil. These changes were mitigated by the addition of saturated fatty acids from either cocoa butter or coconut oil to the piglets’ diet. These results were confirmed in another study a year later. Canola oil was found to suppress the normal developmental increase in platelet count.16
Finally, studies carried out at the Health Research and Toxicology Research Divisions in Ottawa, Canada discovered that rats bred to have high blood pressure and proneness to stroke had shortened life-spans when fed canola oil as the sole source of fat.17 The results of a later study suggested that the culprit was the sterol compounds in the oil, which “make the cell membrane more rigid” and contribute to the shortened life-span of the animals.18
...
These studies all point in the same direction–that canola oil is definitely not healthy for the cardiovascular system. Like rapeseed oil, its predecessor, canola oil is associated with fibrotic lesions of the heart. It also causes vitamin E deficiency, undesirable changes in the blood platelets and shortened life-span in stroke-prone rats when it was the only oil in the animals’ diet. Furthermore, it seems to ...... growth, which is why the FDA does not allow the use of canola oil in infant formula.19 When saturated fats are added to the diet, the undesirable effects of canola oil are mitigated.
ETC.
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Sure, I can find articles that conclude that canola oil is safe
but I can find articles that support all kinds of weird stuff as being safe also.
Money talks...
Regardless of the veracity of the above information or lack thereof
I prefer to play it safe and not use canola oil, after all it isn't custard
But by all means feel free to eat as much of it as you want
Regards,
Hazy