Despite it's deceiving title (aren't all things "vegetable" supposed to be healthy?!), vegetable oils, especially hydrogenated oils, are one of the most inflammatory foods on the planet. These include canola oil, corn oil, soybean oil, and cottonseed oil.
Inflammatory foods, such as vegetable oils (if eaten regularly) cause an immune response that is never “shut off”. This constant production of immune cells creates a state of chronic inflammation in the bodywhich can do permanent damage, leading to cancer, heart disease, arthritis and Alzheimer’s, among other health concerns.
One of the issues with vegetable oils is that they are very unstable oils.When an oil is unstable, it creates oxidation in the body.
Think about it this way - oxidation in the body is exactly what "anti-oxidants" are trying to get rid of, or heal the body from. Anti-oxidants, good. Oxidation, bad.
Anti-oxidants eat up oxidation, and reverse and slow the aging process (alright, alright, alright!).