https://perfectketo.com/soybean-oil/When you expose high-linoleic soybean oil to high temperatures, you generate oxidized lipids. These oxidized lipids increase inflammation in your bloodstream, increasing your risk of atherosclerosis (hardening of your arteries) and heart disease
High linoleic acid oils also throw your omega-6 to omega-3 ratio out of whack. A healthy ratio is at least 4:1, but many health experts argue that a 1:1 ratio or more in favor of omega-3s is ideal.
Unfortunately, most Americans consume super high levels of omega-6s — more like a 1:12 or 1:25 ratio in favor of omega-6s. And high omega-6 levels increase your risk of obesity, inflammation, and deteriorate brain health
Another way that linoleic acid is linked to obesity? By boosting arachidonic acid — another omega-6 fat that can contribute to obesity
Soybean oil may be toxic to critical immune cells
In one study, researchers gave participants either olive oil or soybean oil for two weeks, then measured lymphocyte and neutrophil levels.
Unlike olive oil, soybean oil was toxic to both types of immune cells — immune cells that you need to fight infections and keep you feeling strong.
Oils from soybeans, canola, peanut, and sunflower are all examples of high omega-6 fats that cause inflammation and cellular damage. Avoid these oils whenever you can.