Vegetable oils are oils that have been extracted from various seeds. The most common include rapeseed (canola oil), soybean, corn, sunflower, safflower, peanut, etc. These oils have been extracted unnaturally and can cause harm to our metabolic health.
Vegetable oils are bad because they contain very high levels of polyunsaturated fats (PUFAs). Also, it’s worth noting that the fat content of the human body is about 97% saturated and monounsaturated fat? Our body needs fat for rebuilding cells and hormone production. And it can only use what we give it.
There’s a lot of good stats about Omega-3’s and how healthy they are. But what often gets neglected is the fact that it’s more about the proportion of Omega-3 and Omega-6 fats that are critical to good health.
Vegetable oils contain a very high amount of Omega 6 fatty acids. These fatty acids corrode very easily. Omega-3 fatty acids have been shown to reduce inflammation and protect against cancer. Unequal levels of Omega-3 and Omega-6 fats have been connected to many types of cancers and a host of other problems. most Americans are high in Omega-6 fatty acids and low in Omega-3’s.
Vegetable oil is so highly processed these days that the chemicals in our oils get locked into our fat cells and make it virtually impossible to burn fat for energy. Back when our grandparents were alive, they didn't have these same chemical processes and the oils they ate were healthier and less damaging to our metabolic health. Whole foods like olives and avocado contain healthy fat that is available without heating and chemical processing, so focus on a diet rich in whole foods.