Clinical Trial: The Effect of Artificial Sweeteners (AFS) on Sweetness Sensitivity and Preference - Pilot

Study Status: Completed
Recruit Status: Completed
Study Type: Interventional

Official Title: The Effect of Artificial Sweeteners (AFS) on Sweetness Sensitivity and Preference - Pilot Study

Brief Summary: The goal of this study is to test the hypothesis that repeated consumption of artificial sweetener reduces sweet taste intensity.

Detailed Summary: Significant controversy surrounds the possibility that consumption of artificial sweeteners (AFS) leads to weight gain. Some studies have found correlations between AFS use and weight gain and/or diabetes [1-4] while others have indicated that AFSs may aid in weight loss [5] or have no effects on body mass index (BMI) [6]. In rats, exposure to AFS leads to reduced chow intake following a sweet preload [7, 8], higher body weight [9, 10] and increased glucose responses and decreased GLP1 release following an oral glucose tolerance test [11] compared to exposure to caloric sweeteners. Given that the five FDA approved AFSs are found in thousands of foods [12] this marks a clear and significant gap in knowledge. Our preliminary data demonstrate a 3-fold decrease in sweet taste sensitivity following consumption of a beverage sweetened with two packets of Splenda for just 10 days. These data provide strong evidence that repeated exposure to sucralose reduces perception of sweet taste intensity, most likely by down-regulation of the sweet taste receptor. Therefore, it is imperative that we gain a greater understanding of the consequences of AFS use, since alterations in sweet taste perception that occur in response to AFS exposure may promote weight gain.
Sponsor: Yale University

Current Primary Outcome: Ratings of taste sensitivity [ Time Frame: up to one week after intervention ]

general labeled magnitude scale ratings of taste intensity


Original Primary Outcome: Same as current

Current Secondary Outcome:

Original Secondary Outcome:

Information By: Yale University

Dates:
Date Received: October 24, 2014
Date Started: September 2014
Date Completion:
Last Updated: July 14, 2015
Last Verified: July 2015