Caloric threats from sugarfree drinks?

By Janet Raloff, 15:50 PM April 15, 2008

Animals—and people—learn to link food sweetness and viscosity with high caloric content. Animal studies in the July International Journal of Obesity suggest that regularly ingesting sugar substitutes or artificially sweetened drinks might reprogram individuals so that they can no longer judge the caloric impact of truly sugary snacks.

In one test, Terry Davidson and Susan Swithers of Purdue University in West Lafayette, Ind., provided adolescent rats with sweet drinks and all of the food they...

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