Although both lima beans and butter beans come from the same genus, they are actually two different types of beans. The smaller version is known as baby lima beans, while the larger versions of lima beans are what many people know to be butter beans.
Both types of beans are high in fiber, virtually fat free and a good source of protein. The presence of dietary fiber allows people to lower cholesterol and regulate their blood sugar levels. Like most legumes, lima beans and butter beans are boiled in water before eating, and it is usually a good idea to soak them overnight before cooking.