the seeds of the white kidney bean plant (phaseolus vulgaris) are most commonly used in the extract. This plant is native to europe, the indies and peru. This extract acts as a starch blocker to block alpha-amylase enzyme.white kidney beans extract known scientifically as phaseolus vulgaris, it is an extract from the northern white kidney bean. 

• promote weight loss by anti-alpha amylase activity (neutralize the digestive enzyme)
• taking white bean extract supplements 15 minutes before each meal led to a reduction in both weight and waist circumference.
• it absorb fewer calories can help create the calorie deficit necessary for weight loss.
• because white bean extract limits carbohydrate absorption, it will have the most weight-loss benefits for those who eat a diet high in carbohydrates. Those who follow a low-carb diet aren't likely to experience much of a benefit from this supplement. 

the seeds of the white kidney bean plant (phaseolus vulgaris) are most commonly used in the extract. This plant is native to europe, the indies and peru. This extract acts as a starch blocker to block alpha-amylase enzyme.white kidney beans extract known scientifically as phaseolus vulgaris, it is an extract from the northern white kidney bean. 

• promote weight loss by anti-alpha amylase activity (neutralize the digestive enzyme)
• taking white bean extract supplements 15 minutes before each meal led to a reduction in both weight and waist circumference.
• it absorb fewer calories can help create the calorie deficit necessary for weight loss.
• because white bean extract limits carbohydrate absorption, it will have the most weight-loss benefits for those who eat a diet high in carbohydrates. Those who follow a low-carb diet aren't likely to experience much of a benefit from this supplement.