Research
Energy balance
Obesity is primarily driven by behavioral and environmental factors (sedentary lifestyle and excess energy intake) interacting with genetic susceptibility, rather than genetics alone.
Focus on your environment and habits, not just your genes. Reduce sedentary time and manage calorie intake, as these are the primary levers for weight change.
StrongSupportsHIGH confidence
the World Health Organization Consultation on Obesity concluded that behavioral and environmental factors (ie, sedentary lifestyles combined with excess energy intake) are primarily responsible for the dramatic increase in obesity during the past 2 decades.
Why this rating
Supported by large-scale population surveys (NHANES), twin studies, and WHO consultations.
Source
Obesity: Overview of Prevalence, Etiology, and Treatment
Susan B. Racette et al. · Physical Therapy · 2003
DOI 10.1093/ptj/83.3.276
narrative_reviewCited 237×
Read the paper DOI resolved against Crossref · corpus check 2026-06-10
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