The oxidized byproducts of polyunsaturated fats may further injure blood vessel walls, making inflammation and plaque formation more likely rather than less. Choosing whole food sources of fat, such as avocados, nuts, seeds, and properly prepared animal fats, provides a more stable and nourishing alternative.
How Vegetable Oil Fuels Inflammation and Heart Disease
Reading labels carefully helps identify hidden sources of refined oil in packaged goods, while cooking methods that use gentle heat and short cooking times preserve the stability of whatever fat you choose. As these fats oxidize, they form free radicals and other unstable compounds that can damage cell membranes, proteins, and DNA.
This oxidative stress is a key driver of aging and plays a role in the development of chronic disease. These oils are exceptionally high in omega-6 fatty acids, which are necessary in small amounts but strongly pro-inflammatory when consumed in excess.
How Vegetable Oil Fuels Heart Disease Through Oxidation
These double bonds make the fats liquid at room temperature but also highly reactive, especially when the oil is heated, exposed to light, or simply stored for long periods. Refined vegetable oils sit on nearly every grocery shelf, marketed as heart-healthy and light in taste.
More About Why is vegetable oil bad for you
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More perspective on Why is vegetable oil bad for you can make the topic easier to follow by connecting earlier points with a few simple takeaways.