Avocado variety of Greece / Crete Mayo. Generally for avocados, they can be eaten raw, but are also commonly used in foods such as guacamole. There are many different types of avocados that vary in color, size and shape. Avocado oil is a great source of healthy fats and animal studies suggest a protective effect against inflammation, heart disease and so on. Avocados are rich in monounsaturated fatty acids, mainly oleic acid. They can help protect against heart disease, diabetes and cancer. Avocados are usually pear round and come in many different shades of green, ranging from light green to almost black when fully ripe. Their carotenoids are well absorbed and easily assimilated by humans, due to their high fat content. Nutritionists warmly support the beneficial benefits that avocados offer to humans!