Comparing Diet Tracking Methods for Weight Loss

This study is looking for adults who are overweight or have obesity and want to lose weight. It compares two ways of tracking your diet over 12 months as part of a digital weight loss program. One group will use a "Simplified Dietary Self-Monitoring" approach, tracking only "Red Zone Foods" (foods high in calories, low in nutrition) with a daily goal. The other group will use "Detailed Dietary Self-Monitoring," tracking all foods and calories with a daily calorie goal. All participants will also receive a core behavioral weight loss intervention. Researchers want to see if one tracking method leads to more weight loss or if they are equally effective. The study aims to enroll 328 participants across the United States.

Study design
This is an interventional study that will randomly assign participants to one of two diet tracking methods. It plans to enroll 328 adults.
What's involved
You would participate in a 12-month digital weight loss intervention, tracking your diet daily and monitoring your weight and steps. You would also engage with weekly lessons and action plans.
Compensation
Not stated in the trial record.
Follow-up
Your weight change will be measured at the beginning of the study and again at 12 months.

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NCT07601061

Simplifying Diet Tracking in a Digital Weight Loss Intervention

Not Yet Recruiting
NAAges 18+InterventionalTreatment
Stanford University
~328 participants
Updated 2026-05-28 on ClinicalTrials.gov
What's tested:Simplified Dietary Self-MonitoringDetailed Dietary Self-MonitoringCore Behavioral Weight Loss Intervention

At a glance

Recruiting sites
0 of 1 listed site is recruiting right now
RecruitingSuspended, closed, or not yet open
What they're measuring
Weight Change from Baseline to 12 Months
Measured over Baseline, 12 Months
Overweight
Obesity
Weight Loss
Health Behavior
Lifestyle Intervention
1 sites across 1 states
California1
  • Michele L. Patel, PhD · PRINCIPAL_INVESTIGATOR · Stanford University

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Eligibility criteria

Inclusion

adults (ages 18+ years)
body mass index (BMI) 25.0 to 45.0 kg/m\^2
smartphone ownership
willing to install a mobile app on personal smartphone
access to a personal email account
English or Spanish language proficiency
interest in losing weight through behavioral strategies
living in the United States
willing to be randomized

Exclusion

concurrent enrollment in another weight management intervention
loss of ≥5% weight in the past 6 months
prior or planned bariatric surgery during the trial period
current or planned pregnancy during the trial period, or recent pregnancy in the past 6 months
currently breastfeeding or lactating
current use of anti-obesity medications
living with someone else participating in the study
hospitalization for a mental health condition in the past 12 months
inability to engage in moderate forms of physical activity akin to brisk walking
medical or psychiatric contraindication (e.g., end stage renal disease, cancer, schizophrenia, dementia, use of steroids, use of antipsychotic medication)
if an individual would be better suited for a more intensive or different type of intervention based on a health condition (e.g., individuals with history of an eating disorder or cardiovascular event, uncontrolled hypertension, or uncontrolled diabetes mellitus)
investigator discretion for safety reasons
  • Weight Change from Baseline to 12 MonthsBaseline, 12 Months

    mean change in body weight (kg); assessed objectively via e-scale using standardized procedures (e.g., place the scale on a hard surface; collect weight in the morning, without clothing, prior to eating/drinking)