As a matter of fact, Sieva Carolina lima beans were a favorite of Thomas Jefferson's, who grew them in his expansive garden at Monticello. These beans are creamy white, delicately flavored seeds that are often preferred because they tend to have better flavor than most lima beans. Nutrition-wise, Lima beans are a great energy booster as they are rich in slow-burning complex carbohydrates. They are also low in calories and fat-free, making them the best food for you in case you want to maintain your energy.