What Are myvitamins White Kidney Bean Capsules? myvitamins White Kidney Bean Extract is a natural food extract that is gaining popularity as a supplement. It can be made from the extract of any legume, although most commonly from white kidney beans. These beans are a starchy legume & are rich in several natural nutrients. Why Use A White Kidney Bean Supplement? Since it receives regular media attention, white kidney bean extract has gained popularity as a carb blocker. Although this is yet to be accepted by the EU commission & proved with scientific studies, its popularity is increasing. Uniquely formulated into tasteless capsules, our White Kidney Bean Extract capsules are a convenient natural food extract. What Works Well With White Kidney Bean Extract? For a source of vitamins & minerals to support your metabolism, try our You Go Girl alongside White Kidney Bean Extract.