Dietary quinine reduces body weight and food intake independent of aversive taste |
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Authors: | John P. Heybach Peter C. Boyle |
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Affiliation: | Physiology and Experimental Pharmacology Department General Foods Corporation Technical Center, Cranbury, NJ 08512 USA |
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Abstract: | Separate groups of rats were chronically fed diets adulterated with either bitter tasting quinine sulfate (QSO4), equal amounts of quinine in the less bitter form of quinine tannate (QT), or an amount of sucrose octaacetate (SOA) determined to have aversive taste properties equal to the QSO4 diet. Dietary adulteration with SOA did not affect food intake or body weight. Dietary adulteration with quinine resulted in an initial reduction in food intake that showed a relative recovery but remained depressed compared to the intake of a group eating a quinine-free diet. Ingestion of diets containing equal amounts of quinine base resulted in equivalent chronic body weight reductions, despite different aversive diet characteristics. These results suggest that bitter taste is not the significant variable underlying the body weight effects of quinine but that quinine exerts some postingestive effect on body weight mediated by a slight but sustained decrease in the level of energy intake. |
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Keywords: | Quinine sulfate Quinine tannate Sucrose octaacetate Body weight Food intake |
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