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Local Time: 8/9/2010 3:26:50 AM
GMT Time:
Wed, 8 Sep 2010 01:26:50
Food and Nutrition (23/7/2010)
Obesity Is Associated With Reduced Sensitivity to Fat
Research presented at the Annual Meeting of the Society for the Study of Ingestive Behavior (SSIB) finds marked differences between obese and lean men in how they respond to the taste of fat.
Fat also is less effective in obese men in stimulating certain gut hormones that are released into the bloodstream and normally suppress appetite.
How much we eat can be influenced by how foods taste and their effects on physiological responses in the gut. A reduced ability to taste and react to fat could lead to overeating and obesity.
A team led by Prof. Christine Feinle-Bisset, from the University of Adelaide, Australia, asked lean and obese men to sip drinks with small amounts of fat and indicate when they could taste the fat.
The researchers also measured blood levels of a hormone that is normally released from the gut when fat is consumed. Dr. Feinle-Bisset said: "We found that being obese was associated with a reduced ability to detect fat taste, and with reduced release of an appetite-suppressing gut hormone."
The results could help researchers understand more about why some obese individuals are more prone to eating a high-fat diet than lean individuals.
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