Adherence
Combined behavioral weight management programs (diet plus physical activity) produce significantly greater long-term weight loss (12+ months) than diet-only interventions, despite showing no significant difference in the short term (3-6 months).
If you are aiming for significant, long-term weight loss (over a year), do not rely on diet or exercise alone. Combine a calorie-restricted diet with regular moderate-to-high intensity physical activity. While you might not see a difference in the first 6 months compared to dieting alone, the combination yields significantly better results after 12 months. Consistency and behavioral support are key.
Pooled results showed no significant difference in weight loss from baseline or at 3 to 6 months between the BWMPs and diet-only arms... However, at 12 months, a significantly greater weight-loss was detected in the combined BWMPs (-1.72 kg; 95% CI -2.80 to -0.64).
Why this rating
High-quality systematic review and meta-analysis of RCTs, though heterogeneity was noted in some comparisons.
Source
Diet or Exercise Interventions vs Combined Behavioral Weight Management Programs: A Systematic Review and Meta-Analysis of Direct Comparisons
D.J. Johns et al. · Journal of the Academy of Nutrition and Dietetics · 2014
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