Research
Energy balance
Lifestyle interventions (diet and physical activity) alone result in modest weight loss (2-9%) and are often insufficient for significant health improvements, though they remain a fundamental component of obesity management.
Lifestyle changes are essential but often result in only modest weight loss (2-9%) that is hard to maintain. For significant health improvements, lifestyle changes should be combined with other treatments like medications or surgery, especially if you have obesity-related health conditions.
GoodQualifiesHIGH confidence
Lifestyle interventions lead to a mean weight loss of 2–9% of initial weight at 1y... weight regain over time is common even with continued treatment.
Why this rating
Based on systematic reviews and meta-analyses cited.
Source
Approach to Obesity Treatment in Primary Care
Susan Z. Yanovski et al. · JAMA Internal Medicine · 2024
DOI 10.1001/jamainternmed.2023.8526
narrative_reviewCited 72×
Read the paper DOI resolved against Crossref · corpus check 2026-06-10
More from this paper
- Highly effective anti-obesity medications (AOMs), specifically nutrient-stimulated hormone-based therapies (NuSH-BTs) like semaglutide and tirzepatide, induce mean weight loss of 15% or more, significantly outperforming lifestyle interventions alone.Strong
- Discontinuation of anti-obesity medications (AOMs) after weight loss leads to significant weight regain (approx. two-thirds of lost weight) and reversal of cardiometabolic improvements, necessitating long-term treatment.Strong
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