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Related Experiment Video

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Palatable Western-style Cafeteria Diet as a Reliable Method for Modeling Diet-induced Obesity in Rodents

Palatable Western-style Cafeteria Diet as a Reliable Method for Modeling Diet-induced Obesity in Rodents

Published on: November 1, 2019

Why is the developed world obese?

Sara Bleich¹, David Cutler, Christopher Murray

¹Department of Health Policy and Management, Johns Hopkins School of Public Health, Baltimore, MD 21205, USA. sbleich@jhsph.edu

Annual Review of Public Health

|January 5, 2008

Summary

This summary is machine-generated.

Rising obesity is mainly due to increased calorie consumption, not reduced physical activity. Technological and sociodemographic factors contribute to this dietary excess, informing future obesity research and policy.

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Area of Science:

Public Health
Nutrition Science
Epidemiology

Background:

Global obesity rates have significantly increased over recent decades.
The precise drivers of this epidemic, specifically the balance between energy intake and expenditure, remain unclear.
The influence of socioeconomic factors on energy balance and obesity is not well understood.

Purpose of the Study:

To estimate the relative contributions of increased caloric intake versus reduced physical activity to obesity in developed nations.
To explore the technological and sociodemographic determinants linked to excessive caloric consumption.
To provide insights for future research on the causes of obesity.

Main Methods:

Employed two distinct methods of energy accounting for analysis.
Utilized multivariate regression models to assess contributing factors.
Conducted simulation analysis to investigate determinants of dietary excess.

Main Results:

The primary driver of rising obesity is identified as increased calorie consumption.
Higher caloric intake is significantly associated with technological advancements.
Changes in sociodemographic factors also correlate with increased caloric intake.

Conclusions:

Obesity trends are predominantly influenced by dietary changes rather than energy expenditure.
Technological innovations and evolving sociodemographics play a role in increased caloric intake.
Future public health policies should prioritize strategies to reduce caloric consumption.