Avocados are a source of vitamins C, E, K, and B6, as well as riboflavin, niacin, folate, pantothenic acid, magnesium, and potassium. They also provide lutein, beta carotene, and omega-3 fatty acids. Avocados contain high levels of healthy, beneficial fats, which can help a person feel fuller between meals. It is good for the heart.