From the manufacturer's Label
NOW® PHASE 2® helps you achieve dietary management objectives without the use of stimulants or laxatives. PHASE 2® is an all-natural bean extract that has been shown in non-clinical studies to help reduce the breakdown and absorption of complex carbohydrates, by limiting the action of alpha-amylase, a digestive enzyme. Alpha-amylase helps break down dietary starches into glucose so that they can be absorbed by the digestive tract. With less alpha-amylase activity, there may be less excess glucose available to convert into fat and store as adipose tissue.**Contains no sugar, salt, yeast, wheat, gluten, corn, soy, milk or preservatives.