I disagree totally on canola oil, or rapeseed oil. It is a new oil to food. cyberparent.com The jury if firmly out.
Canola is not a primary a mono-unsaturate. You want to reduce all polyunsaturates except those contained in small quantities in food, such as in fish. They are necessary, but only in small quantities. Deep frying or eating foods made with hydrogenated or other vegatable oils is definitely out.
Olive is unique as it is a dominant monounsaturate. This kind of oil seems to ameliorate CV conditions and does not add to cholesterol formation, whereas other polyunsaturates do.
Walnuts pecans and other dry nuts seem to have a beneficial effect, reducing cholesterol formation, and has been mentioned in this thread. Walnuts themselves have been tested and may effect an actual rollback of cholesterol. Olive oil in the same test was not seen to add to plaque formation, but walnuts seem to have medicinal effects in reduction. This needs further study.
I admit that we are not totally sure of the effect of vegetable oils. In the meantime, since they are new and unique to modern eating habits, and seem to have accompanied an increase in degenerative ailments since the turn of the century. We are seeing a lessened expectation of lifespan once an individual has reached 60, so it would appear that elimination of these oils could be a good idea. My thinking here is to return to a diet that is known to have an outlook of increase lifespan once middle age has been reached. Before the turn of the century once one had reached 60, one was more likely to reach 80 than today. The difference in average lifespan in the modern age is entirely due to the increased survivability to middle age, because of the reduction in death due to bacterial, and childhood infections largely due to increased public health measures. We must remember that the germ theory of disease is a late 19th century invention and the "elimination" of cholera, polio, tuberculosis, child bed fever, tetanus, typhoid, strep, staph and smallpox has only been in the last 100 years. This brings the averages up, but does not increase total longevity. Degenerative illness such as cancer and heart disease is more of a problem to people over 40 than it was 100 years ago in the G7 countries.
The reasons are what we eat and what we do. It is not a matter as some aver of more people living longer so they have to die of something. That is a lie. The statistics do not bear this out. The enemy of all truth is the average.
Since you are a producer and have a large investment, you are incapable of being impartial. I realize that. I am reducing all oil, for two reasons. One they are GMO often, and that has an unkown effect. I do not feel paranoid about GMO, but you have to admit it a dark room, and experimental area. The subject of the experiment is you. The longer term experiment which is what we lived on for 2000 millenia, is a safer one. Return to foods that are more like that seems good. The other reason is they are in the case of soy and canola gmo in and have added some very grotty nerve poisons that eliminate crops for replanting. Read about these class of nerve poisons on page 154 of Silent Spring by Rachel Carson. I read it in 1963 and the whole class did. We believed it and threw copies of the books at our teacher who did not. We (and Rachel and a few others) were right, at 12 and 13 years of age, and the teachers and the Dupont scientists were wrong. Rachel predicted indirectly the death of 50,000 US soldiers in Vietnam from Cancer.
Where does that leave you? Well you could raise organic canola or soy, better still. I do not favour any non organic crops regardless. the insecticides and herebecides destroy vitamins and could be contributing to cancer and nerve damage, even at very low levels. Read about xeno estrogens.
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