Olive oil, particularly extra virgin olive oil (EVOO), is celebrated for its numerous health benefits. It's rich in polyphenols, natural compounds that have been associated with reduced risk of chronic inflammatory diseases, including cardiovascular diseases. Olive oil is believed to have anti-inflammatory, antioxidant, and vasodilatory properties that contribute to heart health. It's also been found to improve biochemical measurements associated with cardiovascular health, potentially lowering the risk of heart disease and stroke. Moreover, EVOO is a key component of the Mediterranean diet, which is known for its health-promoting properties. This guide covers the history, properties, preparation, dosage and usage of Olea europaea as a medicinal herb.