Fizzy Drinks Study

Status Completed

Clinical Trial Summary

The objective of this study is to compare the effect of different levels of carbonation isocaloric beverages on glycemic response (using protocol based on standardized glycemic index testing methodology), gastric emptying and satiety. It is hypothesized that carbon dioxide will delay gastric emptying, and in turn, attenuate glycemic response and enhance satiety. The use of a non-nutrient (gas) in improving glycemic response and satiety would have important health implications for the beverage industry.

Clinical Trial Description

15-20 healthy subjects will be recruited for the study by means of advertisements, flyers and personal communications.

A randomized, cross-over design experiment with three treatments will be carried out. Three different beverages will be prepared:- No carbonation (NC): Potable water + sugar- Low carbonation (LC): Potable water + sugar + little CO2- High carbonation (HC): Potable water + sugar+ high CO2.

The outcome measures assessed will be glycemic response, gastric emptying and satiety. Glycemic response will be measured by taking capillary blood samples (<5ul) by fingerpricking with one-time use sterilized lancets. Gastric emptying will be assessed by ultrasonography methodology developed by Okabe et al, 2015. Satiety will be measured using electronic visual analogue scales assessing hunger, fullness, desire to eat, prospective consumption and thirst. In addition, participants will be asked to rate the level of effervescence of beverage, sweetness of beverage, amount of beverage consumed, as well as how pleasant the beverage was immediately after drinking of test beverage. Feelings of bloatedness will be assessed using electronic visual analogue scales administered at 0, 15, 30, 45, 60, 90,120 min from drinking of test beverage. At the end of the test session, ad libitum lunch will be served, and the amount of food and drinks consumed will be measured (by weight difference before and after serving). ;

Study Design

Allocation: Randomized, Intervention Model: Crossover Assignment, Masking: Single Blind (Subject)

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT02735889
Study type	Interventional
Source	Clinical Nutrition Research Centre, Singapore
Contact
Status	Completed
Phase	N/A
Start date	December 2015
Completion date	August 2016

View Details

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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.