Olive oil can be used for light cooking because it has a high smoke point (410 F). You can cook your eggs, pasta, meat, and vegetables.
If you heat an olive oil with high acidity level, to the point where it smokes, you will cause some degradation of the oil, which is not ideal, but has not been shown to be dangerous to humans. On the other hand, Acropolis Organics (which has low acidity), you’ll find this much more stable to heat, it won’t smoke, and you won’t spoil the nutritional properties of the oil.” So for normal cooking, like frying onions or stir-frying vegetables, extra virgin olive oil is a good and healthy choice.
Due to its high levels of vitamin E and polyphenols, baked goods will last longer when you substitute olive oil for butter.