Research

Energy balance

Body mass index (BMI) increases rapidly with national income until a threshold of approximately $12,500-$17,000 (international dollars), after which it flattens and eventually declines, contradicting the linear 'diseases of affluence' paradigm.

Focus on obesity prevention early in economic development, before income reaches high levels. Interventions should target energy balance (caloric intake and physical activity) during the rapid rise phase, as waiting for high-income lifestyle shifts may be too late for public health goals.

GoodQualifiesHIGH confidence
BMI increased most rapidly until a national income of about I$5,000... and peaked at about I$12,500 for females and I$17,000 for males... BMI increased, then flattened, and eventually declined (Figures 2 and 3).
Majid Ezzati et al. · PLoS Medicine · 2005

Why this rating

Cross-country analysis of over 100 countries using systematic reviews and national data, though observational.

Source

Rethinking the “Diseases of Affluence” Paradigm: Global Patterns of Nutritional Risks in Relation to Economic Development

Majid Ezzati et al. · PLoS Medicine · 2005

DOI 10.1371/journal.pmed.0020133

cross_sectionalCited 622×
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DOI resolved against Crossref · corpus check 2026-06-10

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