Olive oil has higher oleic acid content than other vegetable oils.

Oleic acid is an unsaturated fatty acid that is said to lower cholesterol. It is a monounsaturated fatty acid that lowered bad cholesterol without affecting good cholesterol, which is why olive oil is considered such a healthy oil to cook with. However, the health benefit of monounsaturated fats like that contained in olive oil is rendered ineffective after heating. One way to work around this is to incorporate olive oil in your diet without cooking such as eating with fresh tomatoes or seamlessly added to a salad.

Extra virgin olive oil used in cooking is said to be resilient to heat exposer making it possible to benefit from olive oil monounsaturated fats in your cooking.

Olive oil oleic acid is also said to serve as an insulin inhibitor reducing the amount of energy that is stored away as fat due to high insulin levels in your blood.

Although olive oil is a good way to get healthy fats into your diet, it's still a fat. That means if you are not careful and taking in too much olive oil, it might be lead to obesity.