Effect of Sweetness of the Beverage in Thirst Sensation

NCT ID: NCT01771094

Last Updated: 2013-01-18

Basic Information

• Recruitment Status: COMPLETED
• Clinical Phase: NA
• Total Enrollment: 27 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2012-02-29
• Study Completion Date: 2012-03-31

Brief Summary

The purpose of this study is to determine if water and diet soft drinks with different levels of sweeteners have the same effect on thirst.

Detailed Description

Participants should be in the laboratory at 8.00 in order to collect the values of weight, height, total body water, intracellular water and extracellular water in a Segmental Multi Frequency Body Composition Monitor (TANITA MC 180 MA®). Then, a blood sample will be collected for analysis of blood glucose and osmolality. They will sit at individual tables for the duration of the session and were allowed to read, listen to music with earphones, or use their portable computers with the exception of internet access to minimize visual cues (e.g., unwanted publicity for beverages or visiting Web sites showing pictures of food and drinks), which may have effect on thirst. Breakfast will be served at 9.30 on every occasion and preload stimuli will be offered exactly 60 minutes after breakfast (at 10.30). Lunch will be provided at 13.00. Motivational ratings will be first obtained at the end of collection of blood sample (baseline or time 0) and every 30 minutes thereafter until the lunch time (times 1 through 7). After lunch (time 8), participants will complete the last set of ratings and will bring a food diary to record all food and fluid intake until 00.00 that day.

Conditions

Thirst

Study Design

• Allocation Method: RANDOMIZED
• Intervention Model: CROSSOVER
• Primary Study Purpose: DIAGNOSTIC
• Blinding Strategy: SINGLE

Study Groups

Group 1 (placebo) - Water

This group will drink water in 1st trial

Group Type: PLACEBO_COMPARATOR

Effect of sweetness of the beverage in thirst sensation

Intervention Type: BEHAVIORAL

Effect of sweetness of the beverage in thirst sensation:

The participants will drink Water (control group),"High Sucralose" - Decarbonized Pineapple Diet Soda with a 50% increase of sucralose face to standard beverage, and "Low Sucralose" - Decarbonized Pineapple with a 50% decrease of sucralose face to standard beverage. The beverages will be presented chilled but without ice in 500 ml portions in opaque plastic containers and participants will be asked to consume the entire amount within 15 min.

Group 3 (Intervention) - "Low" Sucralose

This group will drink Decarbonized Pineapple with a 50% decrease of sucralose face to standard beverage in 1st trial

Group Type: EXPERIMENTAL

Effect of sweetness of the beverage in thirst sensation

Intervention Type: BEHAVIORAL

Effect of sweetness of the beverage in thirst sensation:

The participants will drink Water (control group),"High Sucralose" - Decarbonized Pineapple Diet Soda with a 50% increase of sucralose face to standard beverage, and "Low Sucralose" - Decarbonized Pineapple with a 50% decrease of sucralose face to standard beverage. The beverages will be presented chilled but without ice in 500 ml portions in opaque plastic containers and participants will be asked to consume the entire amount within 15 min.

Group 2(Intervention)-"High" Sucralose

This group will drink Decarbonized Pineapple Diet Soda with a 50% increase of sucralose face to standard beverage in 1st trial

Group Type: EXPERIMENTAL

Effect of sweetness of the beverage in thirst sensation

Intervention Type: BEHAVIORAL

Effect of sweetness of the beverage in thirst sensation:

The participants will drink Water (control group),"High Sucralose" - Decarbonized Pineapple Diet Soda with a 50% increase of sucralose face to standard beverage, and "Low Sucralose" - Decarbonized Pineapple with a 50% decrease of sucralose face to standard beverage. The beverages will be presented chilled but without ice in 500 ml portions in opaque plastic containers and participants will be asked to consume the entire amount within 15 min.

Interventions

Effect of sweetness of the beverage in thirst sensation

Effect of sweetness of the beverage in thirst sensation:

The participants will drink Water (control group),"High Sucralose" - Decarbonized Pineapple Diet Soda with a 50% increase of sucralose face to standard beverage, and "Low Sucralose" - Decarbonized Pineapple with a 50% decrease of sucralose face to standard beverage. The beverages will be presented chilled but without ice in 500 ml portions in opaque plastic containers and participants will be asked to consume the entire amount within 15 min.

Intervention Type: BEHAVIORAL

Eligibility Criteria

Inclusion Criteria

• body mass index(BMI) between (18,5 - 27,5 kg/m2)
• regular consumers of breakfast
• stable in weight for the past 6 months
• not dieting to gain or lose weight
• like all drinks and food available in study

Exclusion Criteria

• pregnant and nursing women
• smokers
• athletes
• subjects under medication(except oral contraceptives in women)

• Minimum Eligible Age: 18 Years
• Maximum Eligible Age: 65 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: Yes

Sponsors

Universidade do Porto

OTHER

Sponsor Role: lead

Responsible Party

Pedro Miguel Fernandes Ramos de Carvalho

Invited Assistant

Responsibility Role: PRINCIPAL_INVESTIGATOR

Principal Investigators

Pedro R Carvalho, PhD Student

Role: PRINCIPAL_INVESTIGATOR

FCNAUP

Locations

Faculty of Nutrition and Food Sciences - University of Porto

Porto, Porto District, Portugal

Countries

Portugal

Other Identifiers

Nº30/CEUP/2011

Identifier Type: -

Identifier Source: secondary_id

IHS/FCNAUP-002

Identifier Type: -

Identifier Source: org_study_id