The legume family is large and contains species that can grow in most soils and climates. Legumes include: dried beans, dried peas, lentils, peanuts, soya beans (and the many products made from soy), and bean sprouts. A legume is defined as "the fruit or seed of any of various bean or pea plants consisting of a two-valved case that splits along both sides when ripe and having the seeds attached to one edge of the valves". They are the seeds of plants of the family Fabaceae (previously known as Leguminosae).

Beans have been a source of good nutrition for more than 10,000 years. Common types include chickpeas (garbanzo beans), lentils, green or yellow split peas, butter beans, red kidney beans, mung beans, pinto beans, lima beans, black, blackeye, red and navy beans. They are an excellent source of fiber, protein, iron, folic acid, and other B vitamins. Beans can be used in soups, stews, casseroles or even as dips.