Comparison of Medifast's 5 & 1 Plan to a Food-based Plan of Equal Calories
Public ClinicalTrials.gov record NCT01011491. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
Efficacy of Medifast's 5 & 1 Program Compared to a Food-based Diet After a Period of Weight Loss and Weight Maintenance
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
Portion-controlled meal replacements have been shown to be an effective weight control strategy in overweight and obese individuals. Thus, the investigators plan to evaluate the effect of Medifast's 5 \& 1 program compared to an food-based diet plan of equal calories on the following indices: weight loss and maintenance of weight loss, satiety during weight loss, changes in biochemical markers of inflammation and oxidative stress following weight loss, and compliance and retention rates.
Study identification
- NCT ID
- NCT01011491
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Not applicable
- Enrollment
- 90 participants
Conditions and interventions
Conditions
Interventions
- Medifast 5 & 1 Plan for weight loss and weight maintenance Other
- Food-based diet plan for weight loss and weight maintenance Other
Other
Eligibility (public fields only)
- Age range
- 18 Years to 65 Years
- Sex
- All
- Healthy volunteers
- Healthy volunteers not accepted
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Feb 29, 2008
- Primary completion
- Aug 31, 2009
- Completion
- Aug 31, 2009
- Last update posted
- Nov 10, 2009
2008 – 2009
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Medifast, Inc. | Owings Mills | Maryland | 21117 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT01011491, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Nov 10, 2009 · Synced Sep 2, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT01011491 live on ClinicalTrials.gov.