The Healthy Eating Choices for Life Program
| Status: | Completed |
|---|---|
| Conditions: | Obesity Weight Loss |
| Therapuetic Areas: | Endocrinology |
| Healthy: | No |
| Age Range: | 21 - 65 |
| Updated: | 4/17/2018 |
| Start Date: | January 2010 |
| End Date: | August 2011 |
The Effect of Diets Targeting Energy Density and Energy Restriction on Weight Loss and Feelings of Deprivation, Satisfaction, and Hunger During Behavioral Weight Loss Treatment.
The purpose of this investigation is to conduct a 12-week pilot study to examine the effect
of three different dietary prescriptions that differ on targeting reducing energy density
(kcal/gram) and energy (kcal) on overall dietary intake, hunger, feelings of deprivation,
satisfaction with the diet, mood, and weight loss in 45 overweight/obese adults receiving a
12-week behavioral weight loss intervention.
of three different dietary prescriptions that differ on targeting reducing energy density
(kcal/gram) and energy (kcal) on overall dietary intake, hunger, feelings of deprivation,
satisfaction with the diet, mood, and weight loss in 45 overweight/obese adults receiving a
12-week behavioral weight loss intervention.
Given the current prevalence of overweight and obesity among adults in the United States and
the projected increase of these conditions in the future, development of effective weight
loss and weight loss maintenance strategies is imperative. For weight loss to occur, energy
intake needs to be reduced to incur an energy deficit, and for successful weight loss
maintenance, energy intake needs to remain lower than energy intake at pre-weight loss levels
due to an overall reduction in body size which reduces basal metabolic rate. One dietary
strategy that may facilitate weight loss maintenance is consuming a diet low in dietary
energy density (ED). This pilot study will test the effects of a dietary prescription focused
on ED.
All participants in the investigation will receive a standard 12-week behavioral obesity
intervention. The intervention will include an activity goal that participants will gradually
work to achieve over the course of the 12-week intervention along with standard behavioral
weight loss strategies. One condition will receive a dietary prescription for weight loss
that focuses solely on lowering the ED of the diet, another condition will receive the
traditional dietary prescription used in behavioral weight loss interventions that reduces
energy intake, and the third condition will receive both prescriptions. Pre and post
intervention measurements will be taken to determine if there are differences between groups.
the projected increase of these conditions in the future, development of effective weight
loss and weight loss maintenance strategies is imperative. For weight loss to occur, energy
intake needs to be reduced to incur an energy deficit, and for successful weight loss
maintenance, energy intake needs to remain lower than energy intake at pre-weight loss levels
due to an overall reduction in body size which reduces basal metabolic rate. One dietary
strategy that may facilitate weight loss maintenance is consuming a diet low in dietary
energy density (ED). This pilot study will test the effects of a dietary prescription focused
on ED.
All participants in the investigation will receive a standard 12-week behavioral obesity
intervention. The intervention will include an activity goal that participants will gradually
work to achieve over the course of the 12-week intervention along with standard behavioral
weight loss strategies. One condition will receive a dietary prescription for weight loss
that focuses solely on lowering the ED of the diet, another condition will receive the
traditional dietary prescription used in behavioral weight loss interventions that reduces
energy intake, and the third condition will receive both prescriptions. Pre and post
intervention measurements will be taken to determine if there are differences between groups.
Inclusion Criteria:
- Age between 21 and 65 years
- Body mass index (BMI) between 25 and 45 kg/m2
Exclusion Criteria:
- Report a health condition on the Physical Activity Readiness Questionnaire (PAR-Q)
- Report being unable to walk for 2 blocks (1/4 mile) without stopping
- Report major psychiatric diseases/organic brain syndromes via a phone screen
- Are currently participating in a weight loss program and/or taking weight loss
medication or lost > 5% of body weight during the past 6 months
- Intend to move to another city within the time frame of the investigation
- Are pregnant, lactating, less than 6 months post-partum, or plan to become pregnant
during the time frame of the investigation
- Have had gastric surgery for weight loss
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