Diet Habit, Obesity, Overweight, Weight Loss
Conditions
Brief summary
This research is to develop a weight loss and weight maintenance program through dietary modifications for adults with obesity. Although scientific studies have shown the feasibility of rapid and safe dietary weight loss and subsequent weight maintenance, no efficacious dietary weight management program is widely available, and thus bariatric surgery remains the most reliable approach for weight loss/management. Safe and effective dietary weight loss and subsequent weight maintenance require flexible, individualized advice by an experienced dietitian/nutritionist.
Interventions
BEHAVIORALWeight Management Intervention
Participants attend group and individual dietary education sessions. Participants create a diet plan that satisfies their needs. Participants aim to lose 1 pound weekly until a BMI of 25 is reached. Participants are evaluated through daily self-weighing, dietary records, and food frequency questionnaires.
Sponsors
University of Illinois at Urbana-Champaign
Study design
Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE
Eligibility
Sex/Gender
ALL
Age
18 Years to 70 Years
Healthy volunteers
No
Inclusion criteria
body mass index in the overweight or obese range (BMI) \>28 kg/m2 (if Asian, BMI \>25kg/m2); not currently pregnant or lactating; have Wi-Fi at home, a working email, and an iPhone or Android smartphone; no self-reported severe metabolic, cardiovascular or musculoskeletal disease; not using insulin injection; able to attend the 22 (1 hour) diet improvement sessions; willing to lose 20 lb. or more for 6 months and maintain a healthy weight for one year; keep weighing their weight for two years; fluent in reading and writing English.
Exclusion criteria
age \<18 or \>70 years; body mass index of \<28 kg/m2 (if Asian, BMI \<25kg/m2); currently pregnant; currently lactating; self-reported with severe metabolic, cardiovascular, or musculoskeletal disease; use insulin injection; not able to attend the 22 (1 hour) diet improvement sessions for 1 year; failed to set up a Wi-Fi scale; failed to submit a FFQ.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Body weight | Change from baseline (0 month) to 6 month, 12 month, 18 month, and 24 month | Body weight in kilograms measured on a standard scale (Withings, US) |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Waist circumference | Change from baseline (0 month) to 6 month, 12 month, 24 month | Waist circumference in centimeters measured using a standard measuring tape |
| Hip circumference | Change from baseline (0 month) to 6 month, 12 month, 24 month | Hip circumference in centimeters measured using a standard measuring tape |
| Body composition | Change from baseline (0 month) to 6 month, 12 month, 24 month | Body fat measured using InBody 270 |
| Protein intake | Change from baseline (0 month) to 12 month | Protein intake in grams and grams/100 kilo-calories using a food frequency questionnaire (FFQ) |
| Fiber intake | Change from baseline (0 month) to 12 month | Fiber intake in grams and grams/100 kilo-calories using a food frequency questionnaire (FFQ) |
Countries
United States
Outcome results
None listed