- The common bean (Phaseolus vulgaris) is grown in semitropical areas of the world. Beans vary in color and shape and are a cheap and nutritious food. They are typically high in protein, fiber, and nutrients, and are usually low in fat.
- Early research suggests that beans may reduce cholesterol levels and body weight. They may also benefit people with diabetes. Canned refried black beans may be a good source of iron for those with iron deficiency.
- Some studies report that beans act as "carb blockers" by helping to block the process of carbohydrate digestion. A product called Phase 2® Carb Controller (Pharmachem Laboratories, Kearny, NJ) has been found to promote weight loss and reduce blood glucose after meals.