@sphagnum said in Are Nuts In Their Natural State Used Differently By The Body Than Their Processed Oils?:
@Butter-Girl
Are you asking about how the body uses specifically just the oil in the whole nut, as opposed to the pure oil after processing? Or are you asking about how it uses everything else in the nut as well, like the fiber and protein?
Since I'm uncertain of the exact question at hand, I'll give some general info and hope that it manages to answer in some way.
Just about any nut (or seed) oil that is processed for consumption as a food is going to be almost all polyunsaturated fatty acids (PUFA.) Exceptions that I'm aware of would be macadamia nuts, and palm kernel oil. To avoid any confusion, some other food oils that are not mostly PUFA are coconut, palm, olive, and avocado oils, but these all come from the fruit flesh of the plant and not their nut/seed.
just a heads up about the avocado oil; Ray Peat warned about the toxicity of avocados here: https://raypeat.com/articles/articles/vegetables.shtml
"Not all fruits, of course, are perfectly safe--avocados, for example, contain so much unsaturated fat that they can be carcinogenic and hepatotoxic."
from the references: In Vivo 1998 Nov-Dec;12(6):675-89. "The promotive tumorigenic effects of other high-fat diets (avocado, soybeans) were associated with high content of some polyunsaturated fatty acids (linoleic and alpha-linolenic)."
also: Ann Nutr Metab 1991;35(5):253-60. "Effect of dietary avocado oils on hepatic collagen metabolism. Wermam MJ, Mokady S, Neeman I Department of Food Engineering and Biotechnology, Technion - Israel Institute of Technology, Haifa. The effect of various avocado and soybean oils on collagen metabolism in the liver was studied in growing female rats for 8 weeks and in day-old chicks for 1 week. In comparison with rats fed either refined avocado oil, refined or unrefined soybean oils, rats fed unrefined avocado oil showed a significant decrease in total collagen solubility in the liver, while there were no changes in total collagen, protein and moisture content. Chicks fed unrefined avocado oil as compared to those fed refined avocado oil also showed a decrease in hepatic total soluble collagen while hepatic total collagen remained unaffected. Electron micrographs and light-microscope examinations of rats' liver revealed collagen accumulation in the periportal location. This is suggestive of the early stages of fibrosis."
PUFA, even when not processed, is prone to oxidation, which is in large part why it is often considered toxic to the body. Extracting the oil greatly increases its surface area exposed to oxygen, thus making it much worse in this sense. However, even whole nuts are going to be exposed enough to risk rancidity.
The problem with PUFA is that it is highly susceptible to oxidation after it is eaten. Chew up some nuts, even nice fresh ones, extract the oil from the chewed mass, get it into the blood stream that is 98.6 degrees and highly oxygenated and that oil will oxidize.