Motivating Value of Vegetables Study
| Status: | Completed |
|---|---|
| Conditions: | Obesity Weight Loss |
| Therapuetic Areas: | Endocrinology |
| Healthy: | No |
| Age Range: | 18 - 65 |
| Updated: | 4/17/2018 |
| Start Date: | October 2015 |
| End Date: | January 12, 2018 |
Increasing the Relative Reinforcing Values of Vegetables by Incentive Sensitization
The purpose of this study is to see if perceived barriers to vegetable consumption can be
overcome by making it easier for people eat more vegetables and to see if the effects last
over time.
overcome by making it easier for people eat more vegetables and to see if the effects last
over time.
High vegetable consumption is associated with maintenance of a healthy body weight. Americans
do not eat vegetables in the amounts recommended by the dietary guidelines and interventions
to increase intake have had limited results. Reported barriers to consumption include not
knowing how to prepare them and being unused to eating them.To get people to eat vegetables,
they have to be motivated to do so. Repeated consumption of snack foods increases overweight
and obese individuals' motivation to eat snack foods. The investigators hypothesize that by
increasing people's consumption of vegetables by making them easy to eat will increase the
motivation value of vegetables. For this study the investigators propose to provide
minimally-processed (cleaned, packaged) vegetables to overweight and obese individuals. The
motivating value of vegetables will be measured using a computer task where people play a
game to earn points towards portions of a vegetable or a neutral food (crackers). The
investigators will determine potential moderators of the increase in the motivating value of
vegetables such as genetics (single nucleotide polymorphisms) that are associated with the
motivating value of food and whether people substitute eating vegetables for other foods. The
investigators will also determine changes in adiposity as a result of vegetable consumption.
Lastly, the investigators will determine if repeated consumption increases psychosocial
predictors of vegetable intake, such as self-efficacy of eating vegetables.
do not eat vegetables in the amounts recommended by the dietary guidelines and interventions
to increase intake have had limited results. Reported barriers to consumption include not
knowing how to prepare them and being unused to eating them.To get people to eat vegetables,
they have to be motivated to do so. Repeated consumption of snack foods increases overweight
and obese individuals' motivation to eat snack foods. The investigators hypothesize that by
increasing people's consumption of vegetables by making them easy to eat will increase the
motivation value of vegetables. For this study the investigators propose to provide
minimally-processed (cleaned, packaged) vegetables to overweight and obese individuals. The
motivating value of vegetables will be measured using a computer task where people play a
game to earn points towards portions of a vegetable or a neutral food (crackers). The
investigators will determine potential moderators of the increase in the motivating value of
vegetables such as genetics (single nucleotide polymorphisms) that are associated with the
motivating value of food and whether people substitute eating vegetables for other foods. The
investigators will also determine changes in adiposity as a result of vegetable consumption.
Lastly, the investigators will determine if repeated consumption increases psychosocial
predictors of vegetable intake, such as self-efficacy of eating vegetables.
Inclusion Criteria:
- BMI ≥ 25 kg/m2
- Currently eating ≤ 1 cup of vegetables (apart from fried potatoes) per day
- Willing to consent to study conditions
Exclusion Criteria:
- BMI < 25 kg/m2
- Age < 18 years or > 65 years
- Currently dieting or following specific diet
- Allergies or unwillingness to consume study foods
- Gastrointestinal disorder or disease
- Pregnant, lactating, or planning pregnancy
- Current smoker or tobacco user
- High dietary restraint or certain eating patterns
- Inability to give consent
- Medications that would influence appetite, weight gain, or weight loss
- Exclusionary medications: Didrex, Tenuate, Belviq, Contrave, Phendimetrazine,
Adipex-P, Suprenza, Xenical, Qsymia, Saxenda
We found this trial at
1
site
Grand Forks, North Dakota 58202
Phone: 701-795-8386
Click here to add this to my saved trials
