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Study confirms that low-calorie sweeteners are helpful in weight control
Date:2/8/2008

A recent review of the scientific literature concluded that low-calorie (or no-calorie) sweeteners may be of help in resolving the obesity problem. Although they are not magic bullets, low-calorie sweeteners in beverages and foods can help people reduce their calorie (energy) intakes. Low-calorie sweeteners reduce the energy of most beverages to zero and lower the energy density of many foods, said study co-author, Dr. Adam Drewnowski, Director, Center for Public Health Nutrition at the University of Washington. Every dietary guideline these days tells us to bulk up, hydrate, and consume foods with fewer calories but more volume.

The study by Bellisle and Drewnowski, published in the European Journal of Clinical Nutrition, evaluated a variety of laboratory, clinical and epidemiological studies on low-calorie sweeteners, energy density and satiety. Their findings, based on extensive studies with humans, are completely at odds with a new study on 27 Sprague-Dawley rats eating yogurt, published in the February issue of Behavioral Neuroscience.

The February study, A Role for Sweet Taste: Caloric Predictive Relations in Energy Regulation by Rats, alleges a link between low-calorie sweeteners and weight gain. However, previous studies in humans have shown that low-calorie sweeteners can be helpful in weight control. Everything old is new again: similar studies on the uncoupling of sweetness and calories in humans were conducted back in 1989 and to no great effect, noted Drewnowski. Among criticisms of the study identified by nutrition experts were:

  • Small sample size. The original clinical study by Rogers and Blundell (1989), not cited in this report, used 24 humans. The present study is based on 27 rats.

  • Preabsorptive (cephalic phase) insulin release, the bodys supposed reaction to non-caloric sweet taste, is cited as the potential mechanism for overeating. The problem is that there is no cephalic p
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Contact: Meagan Stangle
mstangle@kellencompany.com
404-252-3663
Kellen Communications
Source:Eurekalert

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