None listed
Conditions
Brief summary
Most obesity research has focused on the characteristics of overweight and obesity both at the individual and population level in an attempt to determine the cause of excess weight and to develop effective prevention and treatment strategies. An alternative approach is to investigate the characteristics of those who manage to maintain a healthy body weight with relative ease (expenders), despite living in an obesogenic environment. Information from this group may allow us to develop novel strategies to benefit those who continually struggle to maintain a healthy body weight (conservers). In addition, it may allow us to intervene in early childhood to promote sustainable obesity-preventing lifestyles. Therefore, the purpose of this study is to assess the dietary compensation capabilities of expenders and conservers in response to additional calories over an 8 week period.
Interventions
This will be a randomised, placebo-controlled, double blind parallel intervention. The study will be carried out to assess the effect of consuming additional calories of the dietary compensation capabilities on individuals who maintain a healthy body weight with relative ease (expenders) and individuals who struggle to maintain a healthy body weight (conservers). Initial respondents will be screened using a pre-tested tool to identify expenders (at least 60) and conservers (at least 60). Part
This will be a randomised, placebo-controlled, double blind parallel intervention. The study will be carried out to assess the effect of consuming additional calories of the dietary compensation capabilities on individuals who maintain a healthy body weight with relative ease (expenders) and individuals who struggle to maintain a healthy body weight (conservers). Initial respondents will be screened using a pre-tested tool to identify expenders (at least 60) and conservers (at least 60). Participants will then be randomly assigned to receive either 600ml of a sugar-sweetened beverage (1000kJ) or 600ml of a non-caloric beverage per day, for a period of 8 weeks.
Sponsors
University of Otago
Study design
Allocation
Randomised controlled trial
Intervention model
Parallel
Primary purpose
Prevention
Masking
Blinded (masking used)
Eligibility
Sex/Gender
All
Age
20 Years to 55 Years
Healthy volunteers
Yes
Inclusion criteria
The inclusion criteria are healthy males (aged 20-55 yrs) and females (aged 20-45 yrs) who are identified as expenders or conservers by the study screening questionnaire.
Exclusion criteria
People who are identified as ineligible by the screening questionnaire. People with a chronic disease such as cancer, heart disease, or diabetes. People with a medical condition that may affect their metabolic rate eg thyroid dysfunction. People with phenylketonuria (as the non-caloric beverage contains phenylalanine). Smokers and post-menopausal females.
Outcome results
None listed