13. Refined Vegetable Oils
Refined vegetable oils are a type of oil processed to a high degree, removing many of the beneficial compounds and leaving behind only the fatty acids which can have a negative impact on cholesterol levels. Refined vegetable oils include canola oil, peanut oil, sunflower oil, soybean oil, and corn oil. These oils contain a large amount of unhealthy saturated and trans fats, which increases LDL (bad) cholesterol and decreases HDL (good) cholesterol. It is important to avoid these refined vegetable oils, and instead opt for healthier options such as olive oil, coconut oil, and avocado oil.