Long-term weight loss maintenance.
Level 5 - mechanism / opinion, no new human data
Narrative review synthesizing observational registry data and literature
PubMed 16002825 · doi:10.1093/ajcn/82.1.222S
What was done
Narrative review examining long-term weight loss maintenance, defined as losing at least 10% of initial body weight and maintaining the loss for at least 1 year, focusing on observational findings from the National Weight Control Registry.
What was found
Approximately 20% of overweight individuals succeed at long-term weight loss maintenance. Registry members lost an average of 33 kg and maintained the loss for more than 5 years. Members reported engaging in approximately 1 hour per day of physical activity, eating a low-calorie, low-fat diet, eating breakfast regularly, self-monitoring weight, and maintaining consistent eating patterns across weekdays and weekends. Maintaining weight loss for 2 to 5 years greatly increased the likelihood of longer-term success. Success was also associated with low levels of depression and disinhibition, continued adherence, and medical triggers for weight loss.
Why it matters
It demonstrates that long-term weight maintenance is achievable in a subset of individuals and characterizes common behavioral habits of successful maintainers.
Limits
Findings rely on self-reported data from a self-selected registry cohort rather than randomized controlled trials. Total sample size, statistical variance, and specific effect sizes are not reported in the abstract.
Cited by
- supports Approximately 75% of people fail to maintain standard traditional weight-loss diets.