How much food tracking during a digital weight‐management program is enough to produce clinically significant weight loss?
Authors' conclusion
Results suggest that perfect food-tracking adherence is not necessary to achieve clinically significant weight loss.
Study context
- Population
- Participants of a 6-month commercial digital weight-management program (WeightWatchers)
- Participants
- 153 participants
- Primary endpoint
- Food-tracking adherence thresholds that best predict ≥3%, ≥5% and ≥10% weight loss
- Follow-up
- 6 months
Methodological detailsROC curve analysis, time series clustering analysis
- ROC curve analysis
- Time series clustering analysis
Primary result
As reported in the abstract
Optimum food-tracking thresholds (% of intervention days) predicting weight loss (ROC analysis)
Threshold for ≥3% weight loss (AUC = 0.820, p < 0.001)
28.5%
Threshold for ≥5% weight loss (AUC = 0.744, p < 0.001)
39.4%
Threshold for 10% weight loss (AUC = 0.712, p = 0.002)
67.1%
Further findings
Food-tracking trajectories (time series clustering) and weight loss · 6 months
- Number of food-tracking trajectories identified
- 3
- Trajectories differed significantly in weight loss (F = 14.1, p < 0.001)
Original publication
How much food tracking during a digital weight‐management program is enough to produce clinically significant weight loss? Obesity (Silver Spring). Published 4 June 2023. doi:10.
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