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starch blocker

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starch blocker

A crude Phaseolus vulgaris (kidney bean)-derived alpha amylase, which is claimed to inhibit the breakdown of carbohydrates (starches) into glucose. Starch blockers have been marketed as a means of allowing excess food consumption without gaining weight; however, there are no peer-reviewed reports supporting claims that starch blockers are effective for weight control. According to Christine Gerbstadt, MD, RD, of the American Dietetic Association, starch blockers probably do allow complex carbohydrates to pass through the small intestine largely undigested; but when they get to the large intestine, the starches ferment, give off gas, and cause bloating and diarrhoea. Purified amylase inhibitor improves improving glucose tolerance in type-2 diabetes.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.

'starch blocker'

Nutrition A crude amylase inhibitor said to allow weight-gainless gluttony, a claim torpedoed by well-designed studies. Cf Sugar blocker.
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.
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References in periodicals archive
Starch blockers are believed to promote weight loss by interfering with and slowing the breakdown of complex CHO, thereby reducing the digestive availability of CHO-derived calories, augmenting distal CHO fermentation, and/or favorably influencing the glucose-insulin system (12-14).
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Starch blockers, called alphaglucosidase inhibitors ( oral drugs), slow the digestion of starch in the small intestine.
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In the 1980s, controversy surfaced over various bean extract products--now referred to as "starch blockers"--that were sold in tablet, capsule and liquid form.
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The main ingredient of carb and starch blockers is phaseolamin, an extract from the white kidney bean.
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