Health - Nature - Life Stimulant Free Pure Phaseolus Vulgaris Extract 500 mg of Extract Per Capsule Dietary Supplement White Kidney Bean is a legume, and just as the name suggests, the kidney bean is shaped like a kidney. Kidney beans that are white in color are also known as cannellini beans. Kidney beans are part of a group of beans that are known scientifically as Phaseolus vulgaris. They are often referred to as "common beans" since it is believed that all of them are derived from a common bean ancestor that originated in Peru. An herbaceous, annual plant, white kidney beans are now grown worldwide. Futurebiotics White Kidney Bean Extract provides 500 mg of pure Phaseolus vulgaris extract per capsule without any added caffeine or other stimulants.