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. The benefits of white kidney bean extract are numerous, with the most notable being its ability to block starches.

   White kidney bean extract may also be beneficial for lowering triglycerides, degenerative arthritis, coronary artery disease and obesity because of the ability it has to inhibit the body's digestion of complex carbohydrates.

    White kidney bean extract has the ability to block starches, so in effect it blocks the alpha-amylase enzyme, which plays an important role in digestion. Alpha-amylase is required for the metabolism of starchy carbohydrates, which are found in foods like potatoes, rice and pasta.

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